Home / 90,269.13-135,409.85-23,709.15

Finding the Fourth Proportional to 90,269.13, 135,409.85 and 23,709.15

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Solution

The fourth proportional to 90,269.13, 135,409.85 and 23,709.15 is: 35,565.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,269.13 : 135,409.85 = 23,709.15 : x
  2. Step 2: Convert to fraction form
    90,269.13/135,409.85 = 23,709.15/x
  3. Step 3: Cross multiply
    90,269.13x = 135,409.85 × 23,709.15
  4. Step 4: Simplify right side
    90,269.13x = 3,210,452,445.13
  5. Step 5: Solve for x
    x = 3,210,452,445.13/90,269.13
  6. Step 6: Final answer
    x = 35,565.34

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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.