Home / 90,081,032.96-124,308,495.12-48,827,039.60

Finding the Fourth Proportional to 90,081,032.96, 124,308,495.12 and 48,827,039.60

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Solution

The fourth proportional to 90,081,032.96, 124,308,495.12 and 48,827,039.60 is: 67,379,509.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,081,032.96 : 124,308,495.12 = 48,827,039.60 : x
  2. Step 2: Convert to fraction form
    90,081,032.96/124,308,495.12 = 48,827,039.60/x
  3. Step 3: Cross multiply
    90,081,032.96x = 124,308,495.12 × 48,827,039.60
  4. Step 4: Simplify right side
    90,081,032.96x = 6,069,615,813,840,647
  5. Step 5: Solve for x
    x = 6,069,615,813,840,647/90,081,032.96
  6. Step 6: Final answer
    x = 67,379,509.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.