Home / 54,590.40-81,799.02-42,140.90

Finding the Fourth Proportional to 54,590.40, 81,799.02 and 42,140.90

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Solution

The fourth proportional to 54,590.40, 81,799.02 and 42,140.90 is: 63,144.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,590.40 : 81,799.02 = 42,140.90 : x
  2. Step 2: Convert to fraction form
    54,590.40/81,799.02 = 42,140.90/x
  3. Step 3: Cross multiply
    54,590.40x = 81,799.02 × 42,140.90
  4. Step 4: Simplify right side
    54,590.40x = 3,447,083,912.92
  5. Step 5: Solve for x
    x = 3,447,083,912.92/54,590.40
  6. Step 6: Final answer
    x = 63,144.51

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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.