Home / 90,531.03-135,780.89-23,972.12

Finding the Fourth Proportional to 90,531.03, 135,780.89 and 23,972.12

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Solution

The fourth proportional to 90,531.03, 135,780.89 and 23,972.12 is: 35,954.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,531.03 : 135,780.89 = 23,972.12 : x
  2. Step 2: Convert to fraction form
    90,531.03/135,780.89 = 23,972.12/x
  3. Step 3: Cross multiply
    90,531.03x = 135,780.89 × 23,972.12
  4. Step 4: Simplify right side
    90,531.03x = 3,254,954,990.02
  5. Step 5: Solve for x
    x = 3,254,954,990.02/90,531.03
  6. Step 6: Final answer
    x = 35,954.03

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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.