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Finding the Fourth Proportional to 69,420.22, 95,728.30 and 59,381.88

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Solution

The fourth proportional to 69,420.22, 95,728.30 and 59,381.88 is: 81,885.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,420.22 : 95,728.30 = 59,381.88 : x
  2. Step 2: Convert to fraction form
    69,420.22/95,728.30 = 59,381.88/x
  3. Step 3: Cross multiply
    69,420.22x = 95,728.30 × 59,381.88
  4. Step 4: Simplify right side
    69,420.22x = 5,684,526,423.20
  5. Step 5: Solve for x
    x = 5,684,526,423.20/69,420.22
  6. Step 6: Final answer
    x = 81,885.74

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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.