Home / 78,847.24-118,301.10-32,139.40

Finding the Fourth Proportional to 78,847.24, 118,301.10 and 32,139.40

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Solution

The fourth proportional to 78,847.24, 118,301.10 and 32,139.40 is: 48,221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,847.24 : 118,301.10 = 32,139.40 : x
  2. Step 2: Convert to fraction form
    78,847.24/118,301.10 = 32,139.40/x
  3. Step 3: Cross multiply
    78,847.24x = 118,301.10 × 32,139.40
  4. Step 4: Simplify right side
    78,847.24x = 3,802,126,373.34
  5. Step 5: Solve for x
    x = 3,802,126,373.34/78,847.24
  6. Step 6: Final answer
    x = 48,221.43

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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.