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Finding the Fourth Proportional to 84,593.44, 126,904.80 and 28,439.04

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Solution

The fourth proportional to 84,593.44, 126,904.80 and 28,439.04 is: 42,663.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,593.44 : 126,904.80 = 28,439.04 : x
  2. Step 2: Convert to fraction form
    84,593.44/126,904.80 = 28,439.04/x
  3. Step 3: Cross multiply
    84,593.44x = 126,904.80 × 28,439.04
  4. Step 4: Simplify right side
    84,593.44x = 3,609,050,683.39
  5. Step 5: Solve for x
    x = 3,609,050,683.39/84,593.44
  6. Step 6: Final answer
    x = 42,663.48

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1.5x scale

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.