Home / 84,721.40-127,122.96-59,920.76

Finding the Fourth Proportional to 84,721.40, 127,122.96 and 59,920.76

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Solution

The fourth proportional to 84,721.40, 127,122.96 and 59,920.76 is: 89,910.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,721.40 : 127,122.96 = 59,920.76 : x
  2. Step 2: Convert to fraction form
    84,721.40/127,122.96 = 59,920.76/x
  3. Step 3: Cross multiply
    84,721.40x = 127,122.96 × 59,920.76
  4. Step 4: Simplify right side
    84,721.40x = 7,617,304,376.65
  5. Step 5: Solve for x
    x = 7,617,304,376.65/84,721.40
  6. Step 6: Final answer
    x = 89,910.04

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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.