Home / 91,922.30-137,737.65-60,721.10

Finding the Fourth Proportional to 91,922.30, 137,737.65 and 60,721.10

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Solution

The fourth proportional to 91,922.30, 137,737.65 and 60,721.10 is: 90,985.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,922.30 : 137,737.65 = 60,721.10 : x
  2. Step 2: Convert to fraction form
    91,922.30/137,737.65 = 60,721.10/x
  3. Step 3: Cross multiply
    91,922.30x = 137,737.65 × 60,721.10
  4. Step 4: Simplify right side
    91,922.30x = 8,363,581,619.42
  5. Step 5: Solve for x
    x = 8,363,581,619.42/91,922.30
  6. Step 6: Final answer
    x = 90,985.34

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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.