Home / 67,439.18-101,158.71-20,054.08

Finding the Fourth Proportional to 67,439.18, 101,158.71 and 20,054.08

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Solution

The fourth proportional to 67,439.18, 101,158.71 and 20,054.08 is: 30,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,439.18 : 101,158.71 = 20,054.08 : x
  2. Step 2: Convert to fraction form
    67,439.18/101,158.71 = 20,054.08/x
  3. Step 3: Cross multiply
    67,439.18x = 101,158.71 × 20,054.08
  4. Step 4: Simplify right side
    67,439.18x = 2,028,644,914.28
  5. Step 5: Solve for x
    x = 2,028,644,914.28/67,439.18
  6. Step 6: Final answer
    x = 30,081.10

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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.