Home / 99,387.20-149,077.60-32,830.40

Finding the Fourth Proportional to 99,387.20, 149,077.60 and 32,830.40

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Solution

The fourth proportional to 99,387.20, 149,077.60 and 32,830.40 is: 49,244.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,387.20 : 149,077.60 = 32,830.40 : x
  2. Step 2: Convert to fraction form
    99,387.20/149,077.60 = 32,830.40/x
  3. Step 3: Cross multiply
    99,387.20x = 149,077.60 × 32,830.40
  4. Step 4: Simplify right side
    99,387.20x = 4,894,277,239.04
  5. Step 5: Solve for x
    x = 4,894,277,239.04/99,387.20
  6. Step 6: Final answer
    x = 49,244.54

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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.