Home / 65,737.50-98,557.02-21,337.74

Finding the Fourth Proportional to 65,737.50, 98,557.02 and 21,337.74

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Solution

The fourth proportional to 65,737.50, 98,557.02 and 21,337.74 is: 31,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,737.50 : 98,557.02 = 21,337.74 : x
  2. Step 2: Convert to fraction form
    65,737.50/98,557.02 = 21,337.74/x
  3. Step 3: Cross multiply
    65,737.50x = 98,557.02 × 21,337.74
  4. Step 4: Simplify right side
    65,737.50x = 2,102,984,067.93
  5. Step 5: Solve for x
    x = 2,102,984,067.93/65,737.50
  6. Step 6: Final answer
    x = 31,990.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.