Home / 90,407.28-124,762.86-50,121.84

Finding the Fourth Proportional to 90,407.28, 124,762.86 and 50,121.84

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Solution

The fourth proportional to 90,407.28, 124,762.86 and 50,121.84 is: 69,168.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,407.28 : 124,762.86 = 50,121.84 : x
  2. Step 2: Convert to fraction form
    90,407.28/124,762.86 = 50,121.84/x
  3. Step 3: Cross multiply
    90,407.28x = 124,762.86 × 50,121.84
  4. Step 4: Simplify right side
    90,407.28x = 6,253,344,106.86
  5. Step 5: Solve for x
    x = 6,253,344,106.86/90,407.28
  6. Step 6: Final answer
    x = 69,168.59

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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.