Home / 68,977.32-103,410.55-38,973.04

Finding the Fourth Proportional to 68,977.32, 103,410.55 and 38,973.04

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Solution

The fourth proportional to 68,977.32, 103,410.55 and 38,973.04 is: 58,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,977.32 : 103,410.55 = 38,973.04 : x
  2. Step 2: Convert to fraction form
    68,977.32/103,410.55 = 38,973.04/x
  3. Step 3: Cross multiply
    68,977.32x = 103,410.55 × 38,973.04
  4. Step 4: Simplify right side
    68,977.32x = 4,030,223,691.12
  5. Step 5: Solve for x
    x = 4,030,223,691.12/68,977.32
  6. Step 6: Final answer
    x = 58,428.25

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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.