Home / 49,130.20-67,799.10-28,987.12

Finding the Fourth Proportional to 49,130.20, 67,799.10 and 28,987.12

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Solution

The fourth proportional to 49,130.20, 67,799.10 and 28,987.12 is: 40,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,130.20 : 67,799.10 = 28,987.12 : x
  2. Step 2: Convert to fraction form
    49,130.20/67,799.10 = 28,987.12/x
  3. Step 3: Cross multiply
    49,130.20x = 67,799.10 × 28,987.12
  4. Step 4: Simplify right side
    49,130.20x = 1,965,300,647.59
  5. Step 5: Solve for x
    x = 1,965,300,647.59/49,130.20
  6. Step 6: Final answer
    x = 40,001.89

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1.5x scale

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.