Home / 90,445.32-124,810.20-50,155.92

Finding the Fourth Proportional to 90,445.32, 124,810.20 and 50,155.92

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Solution

The fourth proportional to 90,445.32, 124,810.20 and 50,155.92 is: 69,212.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,445.32 : 124,810.20 = 50,155.92 : x
  2. Step 2: Convert to fraction form
    90,445.32/124,810.20 = 50,155.92/x
  3. Step 3: Cross multiply
    90,445.32x = 124,810.20 × 50,155.92
  4. Step 4: Simplify right side
    90,445.32x = 6,259,970,406.38
  5. Step 5: Solve for x
    x = 6,259,970,406.38/90,445.32
  6. Step 6: Final answer
    x = 69,212.76

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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.