Home / 71,116.89-98,144.28-40,902.23

Finding the Fourth Proportional to 71,116.89, 98,144.28 and 40,902.23

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Solution

The fourth proportional to 71,116.89, 98,144.28 and 40,902.23 is: 56,446.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,116.89 : 98,144.28 = 40,902.23 : x
  2. Step 2: Convert to fraction form
    71,116.89/98,144.28 = 40,902.23/x
  3. Step 3: Cross multiply
    71,116.89x = 98,144.28 × 40,902.23
  4. Step 4: Simplify right side
    71,116.89x = 4,014,319,423.02
  5. Step 5: Solve for x
    x = 4,014,319,423.02/71,116.89
  6. Step 6: Final answer
    x = 56,446.78

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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.