Home / 90,025.86-124,242.96-49,743.15

Finding the Fourth Proportional to 90,025.86, 124,242.96 and 49,743.15

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Solution

The fourth proportional to 90,025.86, 124,242.96 and 49,743.15 is: 68,649.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,025.86 : 124,242.96 = 49,743.15 : x
  2. Step 2: Convert to fraction form
    90,025.86/124,242.96 = 49,743.15/x
  3. Step 3: Cross multiply
    90,025.86x = 124,242.96 × 49,743.15
  4. Step 4: Simplify right side
    90,025.86x = 6,180,236,195.72
  5. Step 5: Solve for x
    x = 6,180,236,195.72/90,025.86
  6. Step 6: Final answer
    x = 68,649.57

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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.