Home / 54,385.31-74,911.88-38,442.35

Finding the Fourth Proportional to 54,385.31, 74,911.88 and 38,442.35

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Solution

The fourth proportional to 54,385.31, 74,911.88 and 38,442.35 is: 52,951.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,385.31 : 74,911.88 = 38,442.35 : x
  2. Step 2: Convert to fraction form
    54,385.31/74,911.88 = 38,442.35/x
  3. Step 3: Cross multiply
    54,385.31x = 74,911.88 × 38,442.35
  4. Step 4: Simplify right side
    54,385.31x = 2,879,788,431.66
  5. Step 5: Solve for x
    x = 2,879,788,431.66/54,385.31
  6. Step 6: Final answer
    x = 52,951.59

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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.