Home / 90,420.12-135,614.70-23,860.95

Finding the Fourth Proportional to 90,420.12, 135,614.70 and 23,860.95

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Solution

The fourth proportional to 90,420.12, 135,614.70 and 23,860.95 is: 35,787.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,420.12 : 135,614.70 = 23,860.95 : x
  2. Step 2: Convert to fraction form
    90,420.12/135,614.70 = 23,860.95/x
  3. Step 3: Cross multiply
    90,420.12x = 135,614.70 × 23,860.95
  4. Step 4: Simplify right side
    90,420.12x = 3,235,895,575.97
  5. Step 5: Solve for x
    x = 3,235,895,575.97/90,420.12
  6. Step 6: Final answer
    x = 35,787.34

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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.