Home / 98,543.12-147,814.60-31,983.24

Finding the Fourth Proportional to 98,543.12, 147,814.60 and 31,983.24

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Solution

The fourth proportional to 98,543.12, 147,814.60 and 31,983.24 is: 47,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,543.12 : 147,814.60 = 31,983.24 : x
  2. Step 2: Convert to fraction form
    98,543.12/147,814.60 = 31,983.24/x
  3. Step 3: Cross multiply
    98,543.12x = 147,814.60 × 31,983.24
  4. Step 4: Simplify right side
    98,543.12x = 4,727,589,827.30
  5. Step 5: Solve for x
    x = 4,727,589,827.30/98,543.12
  6. Step 6: Final answer
    x = 47,974.83

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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.