Home / 78,457.16-117,594.48-36,248.60

Finding the Fourth Proportional to 78,457.16, 117,594.48 and 36,248.60

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Solution

The fourth proportional to 78,457.16, 117,594.48 and 36,248.60 is: 54,330.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,457.16 : 117,594.48 = 36,248.60 : x
  2. Step 2: Convert to fraction form
    78,457.16/117,594.48 = 36,248.60/x
  3. Step 3: Cross multiply
    78,457.16x = 117,594.48 × 36,248.60
  4. Step 4: Simplify right side
    78,457.16x = 4,262,635,267.73
  5. Step 5: Solve for x
    x = 4,262,635,267.73/78,457.16
  6. Step 6: Final answer
    x = 54,330.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.