Home / 71,862.24-99,172.95-40,031.13

Finding the Fourth Proportional to 71,862.24, 99,172.95 and 40,031.13

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Solution

The fourth proportional to 71,862.24, 99,172.95 and 40,031.13 is: 55,244.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,862.24 : 99,172.95 = 40,031.13 : x
  2. Step 2: Convert to fraction form
    71,862.24/99,172.95 = 40,031.13/x
  3. Step 3: Cross multiply
    71,862.24x = 99,172.95 × 40,031.13
  4. Step 4: Simplify right side
    71,862.24x = 3,970,005,253.93
  5. Step 5: Solve for x
    x = 3,970,005,253.93/71,862.24
  6. Step 6: Final answer
    x = 55,244.66

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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.