Home / 84,654.80-127,036.20-40,331.60

Finding the Fourth Proportional to 84,654.80, 127,036.20 and 40,331.60

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Solution

The fourth proportional to 84,654.80, 127,036.20 and 40,331.60 is: 60,523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,654.80 : 127,036.20 = 40,331.60 : x
  2. Step 2: Convert to fraction form
    84,654.80/127,036.20 = 40,331.60/x
  3. Step 3: Cross multiply
    84,654.80x = 127,036.20 × 40,331.60
  4. Step 4: Simplify right side
    84,654.80x = 5,123,573,203.92
  5. Step 5: Solve for x
    x = 5,123,573,203.92/84,654.80
  6. Step 6: Final answer
    x = 60,523.13

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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.