Home / 49,390.20-74,117.70-28,330.20

Finding the Fourth Proportional to 49,390.20, 74,117.70 and 28,330.20

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Solution

The fourth proportional to 49,390.20, 74,117.70 and 28,330.20 is: 42,513.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,390.20 : 74,117.70 = 28,330.20 : x
  2. Step 2: Convert to fraction form
    49,390.20/74,117.70 = 28,330.20/x
  3. Step 3: Cross multiply
    49,390.20x = 74,117.70 × 28,330.20
  4. Step 4: Simplify right side
    49,390.20x = 2,099,769,264.54
  5. Step 5: Solve for x
    x = 2,099,769,264.54/49,390.20
  6. Step 6: Final answer
    x = 42,513.88

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1.5x scale

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.