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Finding the Fourth Proportional to 79,323.75, 109,471.14 and 45,800.55

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Solution

The fourth proportional to 79,323.75, 109,471.14 and 45,800.55 is: 63,207.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,323.75 : 109,471.14 = 45,800.55 : x
  2. Step 2: Convert to fraction form
    79,323.75/109,471.14 = 45,800.55/x
  3. Step 3: Cross multiply
    79,323.75x = 109,471.14 × 45,800.55
  4. Step 4: Simplify right side
    79,323.75x = 5,013,838,421.13
  5. Step 5: Solve for x
    x = 5,013,838,421.13/79,323.75
  6. Step 6: Final answer
    x = 63,207.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.