Home / 67,621.38-101,250.63-55,090.14

Finding the Fourth Proportional to 67,621.38, 101,250.63 and 55,090.14

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Solution

The fourth proportional to 67,621.38, 101,250.63 and 55,090.14 is: 82,487.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,621.38 : 101,250.63 = 55,090.14 : x
  2. Step 2: Convert to fraction form
    67,621.38/101,250.63 = 55,090.14/x
  3. Step 3: Cross multiply
    67,621.38x = 101,250.63 × 55,090.14
  4. Step 4: Simplify right side
    67,621.38x = 5,577,911,381.79
  5. Step 5: Solve for x
    x = 5,577,911,381.79/67,621.38
  6. Step 6: Final answer
    x = 82,487.39

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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.