Home / 84,640.47-126,981.69-59,729.19

Finding the Fourth Proportional to 84,640.47, 126,981.69 and 59,729.19

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Solution

The fourth proportional to 84,640.47, 126,981.69 and 59,729.19 is: 89,608.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,640.47 : 126,981.69 = 59,729.19 : x
  2. Step 2: Convert to fraction form
    84,640.47/126,981.69 = 59,729.19/x
  3. Step 3: Cross multiply
    84,640.47x = 126,981.69 × 59,729.19
  4. Step 4: Simplify right side
    84,640.47x = 7,584,513,488.53
  5. Step 5: Solve for x
    x = 7,584,513,488.53/84,640.47
  6. Step 6: Final answer
    x = 89,608.59

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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.