Home / 76,073.28-104,979.12-42,083.16

Finding the Fourth Proportional to 76,073.28, 104,979.12 and 42,083.16

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Solution

The fourth proportional to 76,073.28, 104,979.12 and 42,083.16 is: 58,073.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,073.28 : 104,979.12 = 42,083.16 : x
  2. Step 2: Convert to fraction form
    76,073.28/104,979.12 = 42,083.16/x
  3. Step 3: Cross multiply
    76,073.28x = 104,979.12 × 42,083.16
  4. Step 4: Simplify right side
    76,073.28x = 4,417,853,103.62
  5. Step 5: Solve for x
    x = 4,417,853,103.62/76,073.28
  6. Step 6: Final answer
    x = 58,073.65

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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.