Home / 71,310.24-98,404.38-39,038.68

Finding the Fourth Proportional to 71,310.24, 98,404.38 and 39,038.68

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Solution

The fourth proportional to 71,310.24, 98,404.38 and 39,038.68 is: 53,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,310.24 : 98,404.38 = 39,038.68 : x
  2. Step 2: Convert to fraction form
    71,310.24/98,404.38 = 39,038.68/x
  3. Step 3: Cross multiply
    71,310.24x = 98,404.38 × 39,038.68
  4. Step 4: Simplify right side
    71,310.24x = 3,841,577,101.42
  5. Step 5: Solve for x
    x = 3,841,577,101.42/71,310.24
  6. Step 6: Final answer
    x = 53,871.32

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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.