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Finding the Fourth Proportional to 60,815.56, 91,186.08 and 21,377.20

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Solution

The fourth proportional to 60,815.56, 91,186.08 and 21,377.20 is: 32,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,815.56 : 91,186.08 = 21,377.20 : x
  2. Step 2: Convert to fraction form
    60,815.56/91,186.08 = 21,377.20/x
  3. Step 3: Cross multiply
    60,815.56x = 91,186.08 × 21,377.20
  4. Step 4: Simplify right side
    60,815.56x = 1,949,303,069.38
  5. Step 5: Solve for x
    x = 1,949,303,069.38/60,815.56
  6. Step 6: Final answer
    x = 32,052.70

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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.