Home / 91,543.76-137,337.56-38,206.08

Finding the Fourth Proportional to 91,543.76, 137,337.56 and 38,206.08

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Solution

The fourth proportional to 91,543.76, 137,337.56 and 38,206.08 is: 57,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,543.76 : 137,337.56 = 38,206.08 : x
  2. Step 2: Convert to fraction form
    91,543.76/137,337.56 = 38,206.08/x
  3. Step 3: Cross multiply
    91,543.76x = 137,337.56 × 38,206.08
  4. Step 4: Simplify right side
    91,543.76x = 5,247,129,804.36
  5. Step 5: Solve for x
    x = 5,247,129,804.36/91,543.76
  6. Step 6: Final answer
    x = 57,318.27

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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.