Home / 68,454.81-94,468.23-39,387.51

Finding the Fourth Proportional to 68,454.81, 94,468.23 and 39,387.51

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Solution

The fourth proportional to 68,454.81, 94,468.23 and 39,387.51 is: 54,355.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,454.81 : 94,468.23 = 39,387.51 : x
  2. Step 2: Convert to fraction form
    68,454.81/94,468.23 = 39,387.51/x
  3. Step 3: Cross multiply
    68,454.81x = 94,468.23 × 39,387.51
  4. Step 4: Simplify right side
    68,454.81x = 3,720,868,353.81
  5. Step 5: Solve for x
    x = 3,720,868,353.81/68,454.81
  6. Step 6: Final answer
    x = 54,355.10

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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.