Home / 84,901.20-127,351.80-40,614.45

Finding the Fourth Proportional to 84,901.20, 127,351.80 and 40,614.45

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Solution

The fourth proportional to 84,901.20, 127,351.80 and 40,614.45 is: 60,921.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,901.20 : 127,351.80 = 40,614.45 : x
  2. Step 2: Convert to fraction form
    84,901.20/127,351.80 = 40,614.45/x
  3. Step 3: Cross multiply
    84,901.20x = 127,351.80 × 40,614.45
  4. Step 4: Simplify right side
    84,901.20x = 5,172,323,313.51
  5. Step 5: Solve for x
    x = 5,172,323,313.51/84,901.20
  6. Step 6: Final answer
    x = 60,921.68

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Similar ratio
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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.