Home / 83,752.74-115,586.91-47,947.86

Finding the Fourth Proportional to 83,752.74, 115,586.91 and 47,947.86

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Solution

The fourth proportional to 83,752.74, 115,586.91 and 47,947.86 is: 66,172.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,752.74 : 115,586.91 = 47,947.86 : x
  2. Step 2: Convert to fraction form
    83,752.74/115,586.91 = 47,947.86/x
  3. Step 3: Cross multiply
    83,752.74x = 115,586.91 × 47,947.86
  4. Step 4: Simplify right side
    83,752.74x = 5,542,144,978.51
  5. Step 5: Solve for x
    x = 5,542,144,978.51/83,752.74
  6. Step 6: Final answer
    x = 66,172.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.