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Finding the Fourth Proportional to 45,020.80, 67,531.20 and 44,364.70

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Solution

The fourth proportional to 45,020.80, 67,531.20 and 44,364.70 is: 66,547.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,020.80 : 67,531.20 = 44,364.70 : x
  2. Step 2: Convert to fraction form
    45,020.80/67,531.20 = 44,364.70/x
  3. Step 3: Cross multiply
    45,020.80x = 67,531.20 × 44,364.70
  4. Step 4: Simplify right side
    45,020.80x = 2,996,001,428.64
  5. Step 5: Solve for x
    x = 2,996,001,428.64/45,020.80
  6. Step 6: Final answer
    x = 66,547.05

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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.