Home / 67,547.17-101,322.15-20,800

Finding the Fourth Proportional to 67,547.17, 101,322.15 and 20,800

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Solution

The fourth proportional to 67,547.17, 101,322.15 and 20,800 is: 31,200.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,547.17 : 101,322.15 = 20,800 : x
  2. Step 2: Convert to fraction form
    67,547.17/101,322.15 = 20,800/x
  3. Step 3: Cross multiply
    67,547.17x = 101,322.15 × 20,800
  4. Step 4: Simplify right side
    67,547.17x = 2,107,500,720.00
  5. Step 5: Solve for x
    x = 2,107,500,720.00/67,547.17
  6. Step 6: Final answer
    x = 31,200.43

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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.