Home / 54,645.02-81,839.95-42,065.21

Finding the Fourth Proportional to 54,645.02, 81,839.95 and 42,065.21

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Solution

The fourth proportional to 54,645.02, 81,839.95 and 42,065.21 is: 62,999.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,645.02 : 81,839.95 = 42,065.21 : x
  2. Step 2: Convert to fraction form
    54,645.02/81,839.95 = 42,065.21/x
  3. Step 3: Cross multiply
    54,645.02x = 81,839.95 × 42,065.21
  4. Step 4: Simplify right side
    54,645.02x = 3,442,614,782.58
  5. Step 5: Solve for x
    x = 3,442,614,782.58/54,645.02
  6. Step 6: Final answer
    x = 62,999.61

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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.