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Finding the Fourth Proportional to 84,041.68, 126,062.52 and 48,981.20

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Solution

The fourth proportional to 84,041.68, 126,062.52 and 48,981.20 is: 73,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,041.68 : 126,062.52 = 48,981.20 : x
  2. Step 2: Convert to fraction form
    84,041.68/126,062.52 = 48,981.20/x
  3. Step 3: Cross multiply
    84,041.68x = 126,062.52 × 48,981.20
  4. Step 4: Simplify right side
    84,041.68x = 6,174,693,504.62
  5. Step 5: Solve for x
    x = 6,174,693,504.62/84,041.68
  6. Step 6: Final answer
    x = 73,471.80

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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.