Home / 67,126.87-100,899.51-42,326.29

Finding the Fourth Proportional to 67,126.87, 100,899.51 and 42,326.29

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Solution

The fourth proportional to 67,126.87, 100,899.51 and 42,326.29 is: 63,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,126.87 : 100,899.51 = 42,326.29 : x
  2. Step 2: Convert to fraction form
    67,126.87/100,899.51 = 42,326.29/x
  3. Step 3: Cross multiply
    67,126.87x = 100,899.51 × 42,326.29
  4. Step 4: Simplify right side
    67,126.87x = 4,270,701,921.12
  5. Step 5: Solve for x
    x = 4,270,701,921.12/67,126.87
  6. Step 6: Final answer
    x = 63,621.35

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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.