Home / 84,921.20-127,349.40-25,737.20

Finding the Fourth Proportional to 84,921.20, 127,349.40 and 25,737.20

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Solution

The fourth proportional to 84,921.20, 127,349.40 and 25,737.20 is: 38,595.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,921.20 : 127,349.40 = 25,737.20 : x
  2. Step 2: Convert to fraction form
    84,921.20/127,349.40 = 25,737.20/x
  3. Step 3: Cross multiply
    84,921.20x = 127,349.40 × 25,737.20
  4. Step 4: Simplify right side
    84,921.20x = 3,277,616,977.68
  5. Step 5: Solve for x
    x = 3,277,616,977.68/84,921.20
  6. Step 6: Final answer
    x = 38,595.98

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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.