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Finding the Fourth Proportional to 71,170.57, 98,225.15 and 40,955.28

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Solution

The fourth proportional to 71,170.57, 98,225.15 and 40,955.28 is: 56,523.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,170.57 : 98,225.15 = 40,955.28 : x
  2. Step 2: Convert to fraction form
    71,170.57/98,225.15 = 40,955.28/x
  3. Step 3: Cross multiply
    71,170.57x = 98,225.15 × 40,955.28
  4. Step 4: Simplify right side
    71,170.57x = 4,022,838,521.29
  5. Step 5: Solve for x
    x = 4,022,838,521.29/71,170.57
  6. Step 6: Final answer
    x = 56,523.90

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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.