Home / 82,752.90-124,180.65-43,338.30

Finding the Fourth Proportional to 82,752.90, 124,180.65 and 43,338.30

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Solution

The fourth proportional to 82,752.90, 124,180.65 and 43,338.30 is: 65,034.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,752.90 : 124,180.65 = 43,338.30 : x
  2. Step 2: Convert to fraction form
    82,752.90/124,180.65 = 43,338.30/x
  3. Step 3: Cross multiply
    82,752.90x = 124,180.65 × 43,338.30
  4. Step 4: Simplify right side
    82,752.90x = 5,381,778,263.90
  5. Step 5: Solve for x
    x = 5,381,778,263.90/82,752.90
  6. Step 6: Final answer
    x = 65,034.32

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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.