Home / 84,899.52-127,155.34-40,557.64

Finding the Fourth Proportional to 84,899.52, 127,155.34 and 40,557.64

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Solution

The fourth proportional to 84,899.52, 127,155.34 and 40,557.64 is: 60,743.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,899.52 : 127,155.34 = 40,557.64 : x
  2. Step 2: Convert to fraction form
    84,899.52/127,155.34 = 40,557.64/x
  3. Step 3: Cross multiply
    84,899.52x = 127,155.34 × 40,557.64
  4. Step 4: Simplify right side
    84,899.52x = 5,157,120,503.80
  5. Step 5: Solve for x
    x = 5,157,120,503.80/84,899.52
  6. Step 6: Final answer
    x = 60,743.81

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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.