Home / 72,876.08-100,576.16-42,659.58

Finding the Fourth Proportional to 72,876.08, 100,576.16 and 42,659.58

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Solution

The fourth proportional to 72,876.08, 100,576.16 and 42,659.58 is: 58,874.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,876.08 : 100,576.16 = 42,659.58 : x
  2. Step 2: Convert to fraction form
    72,876.08/100,576.16 = 42,659.58/x
  3. Step 3: Cross multiply
    72,876.08x = 100,576.16 × 42,659.58
  4. Step 4: Simplify right side
    72,876.08x = 4,290,536,743.61
  5. Step 5: Solve for x
    x = 4,290,536,743.61/72,876.08
  6. Step 6: Final answer
    x = 58,874.42

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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.