Home / 76,032.60-104,920.74-42,039.12

Finding the Fourth Proportional to 76,032.60, 104,920.74 and 42,039.12

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Solution

The fourth proportional to 76,032.60, 104,920.74 and 42,039.12 is: 58,011.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,032.60 : 104,920.74 = 42,039.12 : x
  2. Step 2: Convert to fraction form
    76,032.60/104,920.74 = 42,039.12/x
  3. Step 3: Cross multiply
    76,032.60x = 104,920.74 × 42,039.12
  4. Step 4: Simplify right side
    76,032.60x = 4,410,775,579.35
  5. Step 5: Solve for x
    x = 4,410,775,579.35/76,032.60
  6. Step 6: Final answer
    x = 58,011.64

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1.5x scale

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.