Home / 90,561.16-124,989.36-50,287.84

Finding the Fourth Proportional to 90,561.16, 124,989.36 and 50,287.84

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Solution

The fourth proportional to 90,561.16, 124,989.36 and 50,287.84 is: 69,405.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,561.16 : 124,989.36 = 50,287.84 : x
  2. Step 2: Convert to fraction form
    90,561.16/124,989.36 = 50,287.84/x
  3. Step 3: Cross multiply
    90,561.16x = 124,989.36 × 50,287.84
  4. Step 4: Simplify right side
    90,561.16x = 6,285,444,937.38
  5. Step 5: Solve for x
    x = 6,285,444,937.38/90,561.16
  6. Step 6: Final answer
    x = 69,405.53

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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.