Home / 67,399.72-101,099.10-52,621

Finding the Fourth Proportional to 67,399.72, 101,099.10 and 52,621

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Solution

The fourth proportional to 67,399.72, 101,099.10 and 52,621 is: 78,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,399.72 : 101,099.10 = 52,621 : x
  2. Step 2: Convert to fraction form
    67,399.72/101,099.10 = 52,621/x
  3. Step 3: Cross multiply
    67,399.72x = 101,099.10 × 52,621
  4. Step 4: Simplify right side
    67,399.72x = 5,319,935,741.10
  5. Step 5: Solve for x
    x = 5,319,935,741.10/67,399.72
  6. Step 6: Final answer
    x = 78,931.13

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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.