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Finding the Fourth Proportional to 67,818.40, 101,616.24 and 65,226.40

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Solution

The fourth proportional to 67,818.40, 101,616.24 and 65,226.40 is: 97,732.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,818.40 : 101,616.24 = 65,226.40 : x
  2. Step 2: Convert to fraction form
    67,818.40/101,616.24 = 65,226.40/x
  3. Step 3: Cross multiply
    67,818.40x = 101,616.24 × 65,226.40
  4. Step 4: Simplify right side
    67,818.40x = 6,628,061,516.74
  5. Step 5: Solve for x
    x = 6,628,061,516.74/67,818.40
  6. Step 6: Final answer
    x = 97,732.50

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1.5x scale

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.