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Finding the Fourth Proportional to 90,585.57, 125,125.74 and 68,943.86

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Solution

The fourth proportional to 90,585.57, 125,125.74 and 68,943.86 is: 95,232.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,585.57 : 125,125.74 = 68,943.86 : x
  2. Step 2: Convert to fraction form
    90,585.57/125,125.74 = 68,943.86/x
  3. Step 3: Cross multiply
    90,585.57x = 125,125.74 × 68,943.86
  4. Step 4: Simplify right side
    90,585.57x = 8,626,650,875.33
  5. Step 5: Solve for x
    x = 8,626,650,875.33/90,585.57
  6. Step 6: Final answer
    x = 95,232.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.