Home / 71,008.57-97,989.10-39,176.92

Finding the Fourth Proportional to 71,008.57, 97,989.10 and 39,176.92

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Solution

The fourth proportional to 71,008.57, 97,989.10 and 39,176.92 is: 54,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,008.57 : 97,989.10 = 39,176.92 : x
  2. Step 2: Convert to fraction form
    71,008.57/97,989.10 = 39,176.92/x
  3. Step 3: Cross multiply
    71,008.57x = 97,989.10 × 39,176.92
  4. Step 4: Simplify right side
    71,008.57x = 3,838,911,131.57
  5. Step 5: Solve for x
    x = 3,838,911,131.57/71,008.57
  6. Step 6: Final answer
    x = 54,062.65

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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.