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Finding the Fourth Proportional to 45,314.80, 67,972.20 and 44,658.70

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Solution

The fourth proportional to 45,314.80, 67,972.20 and 44,658.70 is: 66,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,314.80 : 67,972.20 = 44,658.70 : x
  2. Step 2: Convert to fraction form
    45,314.80/67,972.20 = 44,658.70/x
  3. Step 3: Cross multiply
    45,314.80x = 67,972.20 × 44,658.70
  4. Step 4: Simplify right side
    45,314.80x = 3,035,550,088.14
  5. Step 5: Solve for x
    x = 3,035,550,088.14/45,314.80
  6. Step 6: Final answer
    x = 66,988.05

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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.