Home / 90,531.78-135,782.01-23,972.87

Finding the Fourth Proportional to 90,531.78, 135,782.01 and 23,972.87

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Solution

The fourth proportional to 90,531.78, 135,782.01 and 23,972.87 is: 35,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,531.78 : 135,782.01 = 23,972.87 : x
  2. Step 2: Convert to fraction form
    90,531.78/135,782.01 = 23,972.87/x
  3. Step 3: Cross multiply
    90,531.78x = 135,782.01 × 23,972.87
  4. Step 4: Simplify right side
    90,531.78x = 3,255,083,795.16
  5. Step 5: Solve for x
    x = 3,255,083,795.16/90,531.78
  6. Step 6: Final answer
    x = 35,955.15

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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.