Home / 98,475.12-147,681.68-31,899.83

Finding the Fourth Proportional to 98,475.12, 147,681.68 and 31,899.83

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Solution

The fourth proportional to 98,475.12, 147,681.68 and 31,899.83 is: 47,839.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,475.12 : 147,681.68 = 31,899.83 : x
  2. Step 2: Convert to fraction form
    98,475.12/147,681.68 = 31,899.83/x
  3. Step 3: Cross multiply
    98,475.12x = 147,681.68 × 31,899.83
  4. Step 4: Simplify right side
    98,475.12x = 4,711,019,588.21
  5. Step 5: Solve for x
    x = 4,711,019,588.21/98,475.12
  6. Step 6: Final answer
    x = 47,839.69

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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.