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Finding the Fourth Proportional to 71,172.76, 98,228.18 and 40,957.46

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Solution

The fourth proportional to 71,172.76, 98,228.18 and 40,957.46 is: 56,526.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,172.76 : 98,228.18 = 40,957.46 : x
  2. Step 2: Convert to fraction form
    71,172.76/98,228.18 = 40,957.46/x
  3. Step 3: Cross multiply
    71,172.76x = 98,228.18 × 40,957.46
  4. Step 4: Simplify right side
    71,172.76x = 4,023,176,794.01
  5. Step 5: Solve for x
    x = 4,023,176,794.01/71,172.76
  6. Step 6: Final answer
    x = 56,526.92

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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.