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Finding the Fourth Proportional to 68,061.60, 101,526.48 and 66,972.96

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Solution

The fourth proportional to 68,061.60, 101,526.48 and 66,972.96 is: 99,902.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,061.60 : 101,526.48 = 66,972.96 : x
  2. Step 2: Convert to fraction form
    68,061.60/101,526.48 = 66,972.96/x
  3. Step 3: Cross multiply
    68,061.60x = 101,526.48 × 66,972.96
  4. Step 4: Simplify right side
    68,061.60x = 6,799,528,883.98
  5. Step 5: Solve for x
    x = 6,799,528,883.98/68,061.60
  6. Step 6: Final answer
    x = 99,902.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.