Home / 51,008.20-76,512.30-42,843.40

Finding the Fourth Proportional to 51,008.20, 76,512.30 and 42,843.40

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Solution

The fourth proportional to 51,008.20, 76,512.30 and 42,843.40 is: 64,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,008.20 : 76,512.30 = 42,843.40 : x
  2. Step 2: Convert to fraction form
    51,008.20/76,512.30 = 42,843.40/x
  3. Step 3: Cross multiply
    51,008.20x = 76,512.30 × 42,843.40
  4. Step 4: Simplify right side
    51,008.20x = 3,278,047,073.82
  5. Step 5: Solve for x
    x = 3,278,047,073.82/51,008.20
  6. Step 6: Final answer
    x = 64,265.10

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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.