Home / 90,522.77-124,902.41-54,705.78

Finding the Fourth Proportional to 90,522.77, 124,902.41 and 54,705.78

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Solution

The fourth proportional to 90,522.77, 124,902.41 and 54,705.78 is: 75,482.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,522.77 : 124,902.41 = 54,705.78 : x
  2. Step 2: Convert to fraction form
    90,522.77/124,902.41 = 54,705.78/x
  3. Step 3: Cross multiply
    90,522.77x = 124,902.41 × 54,705.78
  4. Step 4: Simplify right side
    90,522.77x = 6,832,883,489.40
  5. Step 5: Solve for x
    x = 6,832,883,489.40/90,522.77
  6. Step 6: Final answer
    x = 75,482.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.