Home / 98,538.67-147,769.66-31,962.70

Finding the Fourth Proportional to 98,538.67, 147,769.66 and 31,962.70

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Solution

The fourth proportional to 98,538.67, 147,769.66 and 31,962.70 is: 47,931.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,538.67 : 147,769.66 = 31,962.70 : x
  2. Step 2: Convert to fraction form
    98,538.67/147,769.66 = 31,962.70/x
  3. Step 3: Cross multiply
    98,538.67x = 147,769.66 × 31,962.70
  4. Step 4: Simplify right side
    98,538.67x = 4,723,117,311.68
  5. Step 5: Solve for x
    x = 4,723,117,311.68/98,538.67
  6. Step 6: Final answer
    x = 47,931.61

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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.