Home / 67,621.68-101,432.52-52,808.40

Finding the Fourth Proportional to 67,621.68, 101,432.52 and 52,808.40

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Solution

The fourth proportional to 67,621.68, 101,432.52 and 52,808.40 is: 79,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,621.68 : 101,432.52 = 52,808.40 : x
  2. Step 2: Convert to fraction form
    67,621.68/101,432.52 = 52,808.40/x
  3. Step 3: Cross multiply
    67,621.68x = 101,432.52 × 52,808.40
  4. Step 4: Simplify right side
    67,621.68x = 5,356,489,089.17
  5. Step 5: Solve for x
    x = 5,356,489,089.17/67,621.68
  6. Step 6: Final answer
    x = 79,212.60

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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.