Home / 71,955.18-99,302.10-40,124.04

Finding the Fourth Proportional to 71,955.18, 99,302.10 and 40,124.04

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Solution

The fourth proportional to 71,955.18, 99,302.10 and 40,124.04 is: 55,373.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,955.18 : 99,302.10 = 40,124.04 : x
  2. Step 2: Convert to fraction form
    71,955.18/99,302.10 = 40,124.04/x
  3. Step 3: Cross multiply
    71,955.18x = 99,302.10 × 40,124.04
  4. Step 4: Simplify right side
    71,955.18x = 3,984,401,432.48
  5. Step 5: Solve for x
    x = 3,984,401,432.48/71,955.18
  6. Step 6: Final answer
    x = 55,373.38

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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.