Home / 42,357.64-63,456.26-28,275.20

Finding the Fourth Proportional to 42,357.64, 63,456.26 and 28,275.20

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Solution

The fourth proportional to 42,357.64, 63,456.26 and 28,275.20 is: 42,359.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,357.64 : 63,456.26 = 28,275.20 : x
  2. Step 2: Convert to fraction form
    42,357.64/63,456.26 = 28,275.20/x
  3. Step 3: Cross multiply
    42,357.64x = 63,456.26 × 28,275.20
  4. Step 4: Simplify right side
    42,357.64x = 1,794,238,442.75
  5. Step 5: Solve for x
    x = 1,794,238,442.75/42,357.64
  6. Step 6: Final answer
    x = 42,359.26

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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.