Home / 49,488.80-74,132.40-30,711.20

Finding the Fourth Proportional to 49,488.80, 74,132.40 and 30,711.20

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Solution

The fourth proportional to 49,488.80, 74,132.40 and 30,711.20 is: 46,004.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,488.80 : 74,132.40 = 30,711.20 : x
  2. Step 2: Convert to fraction form
    49,488.80/74,132.40 = 30,711.20/x
  3. Step 3: Cross multiply
    49,488.80x = 74,132.40 × 30,711.20
  4. Step 4: Simplify right side
    49,488.80x = 2,276,694,962.88
  5. Step 5: Solve for x
    x = 2,276,694,962.88/49,488.80
  6. Step 6: Final answer
    x = 46,004.25

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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.