Home / 83,731.28-115,550.48-45,491.59

Finding the Fourth Proportional to 83,731.28, 115,550.48 and 45,491.59

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Solution

The fourth proportional to 83,731.28, 115,550.48 and 45,491.59 is: 62,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,731.28 : 115,550.48 = 45,491.59 : x
  2. Step 2: Convert to fraction form
    83,731.28/115,550.48 = 45,491.59/x
  3. Step 3: Cross multiply
    83,731.28x = 115,550.48 × 45,491.59
  4. Step 4: Simplify right side
    83,731.28x = 5,256,574,993.64
  5. Step 5: Solve for x
    x = 5,256,574,993.64/83,731.28
  6. Step 6: Final answer
    x = 62,779.10

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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.