Home / 82,089.32-123,140.96-25,914.40

Finding the Fourth Proportional to 82,089.32, 123,140.96 and 25,914.40

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Solution

The fourth proportional to 82,089.32, 123,140.96 and 25,914.40 is: 38,873.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,089.32 : 123,140.96 = 25,914.40 : x
  2. Step 2: Convert to fraction form
    82,089.32/123,140.96 = 25,914.40/x
  3. Step 3: Cross multiply
    82,089.32x = 123,140.96 × 25,914.40
  4. Step 4: Simplify right side
    82,089.32x = 3,191,124,158.61
  5. Step 5: Solve for x
    x = 3,191,124,158.61/82,089.32
  6. Step 6: Final answer
    x = 38,873.81

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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.