Home / 71,111.79-98,132.13-39,280.62

Finding the Fourth Proportional to 71,111.79, 98,132.13 and 39,280.62

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Solution

The fourth proportional to 71,111.79, 98,132.13 and 39,280.62 is: 54,206.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,111.79 : 98,132.13 = 39,280.62 : x
  2. Step 2: Convert to fraction form
    71,111.79/98,132.13 = 39,280.62/x
  3. Step 3: Cross multiply
    71,111.79x = 98,132.13 × 39,280.62
  4. Step 4: Simplify right side
    71,111.79x = 3,854,690,908.32
  5. Step 5: Solve for x
    x = 3,854,690,908.32/71,111.79
  6. Step 6: Final answer
    x = 54,206.07

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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.