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Finding the Fourth Proportional to 82,361.46, 123,445.80 and 73,019.34

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Solution

The fourth proportional to 82,361.46, 123,445.80 and 73,019.34 is: 109,443.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,361.46 : 123,445.80 = 73,019.34 : x
  2. Step 2: Convert to fraction form
    82,361.46/123,445.80 = 73,019.34/x
  3. Step 3: Cross multiply
    82,361.46x = 123,445.80 × 73,019.34
  4. Step 4: Simplify right side
    82,361.46x = 9,013,930,841.77
  5. Step 5: Solve for x
    x = 9,013,930,841.77/82,361.46
  6. Step 6: Final answer
    x = 109,443.55

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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.