Home / 91,683.72-137,545.02-28,502.28

Finding the Fourth Proportional to 91,683.72, 137,545.02 and 28,502.28

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Solution

The fourth proportional to 91,683.72, 137,545.02 and 28,502.28 is: 42,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,683.72 : 137,545.02 = 28,502.28 : x
  2. Step 2: Convert to fraction form
    91,683.72/137,545.02 = 28,502.28/x
  3. Step 3: Cross multiply
    91,683.72x = 137,545.02 × 28,502.28
  4. Step 4: Simplify right side
    91,683.72x = 3,920,346,672.65
  5. Step 5: Solve for x
    x = 3,920,346,672.65/91,683.72
  6. Step 6: Final answer
    x = 42,759.46

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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.