Home / 90,365.30-135,549.31-23,812.15

Finding the Fourth Proportional to 90,365.30, 135,549.31 and 23,812.15

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Solution

The fourth proportional to 90,365.30, 135,549.31 and 23,812.15 is: 35,718.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,365.30 : 135,549.31 = 23,812.15 : x
  2. Step 2: Convert to fraction form
    90,365.30/135,549.31 = 23,812.15/x
  3. Step 3: Cross multiply
    90,365.30x = 135,549.31 × 23,812.15
  4. Step 4: Simplify right side
    90,365.30x = 3,227,720,502.12
  5. Step 5: Solve for x
    x = 3,227,720,502.12/90,365.30
  6. Step 6: Final answer
    x = 35,718.58

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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.