Home / 72,512.11-100,044.28-42,276.03

Finding the Fourth Proportional to 72,512.11, 100,044.28 and 42,276.03

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Solution

The fourth proportional to 72,512.11, 100,044.28 and 42,276.03 is: 58,327.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,512.11 : 100,044.28 = 42,276.03 : x
  2. Step 2: Convert to fraction form
    72,512.11/100,044.28 = 42,276.03/x
  3. Step 3: Cross multiply
    72,512.11x = 100,044.28 × 42,276.03
  4. Step 4: Simplify right side
    72,512.11x = 4,229,474,660.29
  5. Step 5: Solve for x
    x = 4,229,474,660.29/72,512.11
  6. Step 6: Final answer
    x = 58,327.84

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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.