Home / 74,031.12-111,046.68-42,849.36

Finding the Fourth Proportional to 74,031.12, 111,046.68 and 42,849.36

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Solution

The fourth proportional to 74,031.12, 111,046.68 and 42,849.36 is: 64,274.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,031.12 : 111,046.68 = 42,849.36 : x
  2. Step 2: Convert to fraction form
    74,031.12/111,046.68 = 42,849.36/x
  3. Step 3: Cross multiply
    74,031.12x = 111,046.68 × 42,849.36
  4. Step 4: Simplify right side
    74,031.12x = 4,758,279,168.12
  5. Step 5: Solve for x
    x = 4,758,279,168.12/74,031.12
  6. Step 6: Final answer
    x = 64,274.04

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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.