Home / 56,422.20-84,633.30-28,428.60

Finding the Fourth Proportional to 56,422.20, 84,633.30 and 28,428.60

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Solution

The fourth proportional to 56,422.20, 84,633.30 and 28,428.60 is: 42,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,422.20 : 84,633.30 = 28,428.60 : x
  2. Step 2: Convert to fraction form
    56,422.20/84,633.30 = 28,428.60/x
  3. Step 3: Cross multiply
    56,422.20x = 84,633.30 × 28,428.60
  4. Step 4: Simplify right side
    56,422.20x = 2,406,006,232.38
  5. Step 5: Solve for x
    x = 2,406,006,232.38/56,422.20
  6. Step 6: Final answer
    x = 42,642.90

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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.