Home / 90,262.68-124,561-49,975.60

Finding the Fourth Proportional to 90,262.68, 124,561 and 49,975.60

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Solution

The fourth proportional to 90,262.68, 124,561 and 49,975.60 is: 68,965.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,262.68 : 124,561 = 49,975.60 : x
  2. Step 2: Convert to fraction form
    90,262.68/124,561 = 49,975.60/x
  3. Step 3: Cross multiply
    90,262.68x = 124,561 × 49,975.60
  4. Step 4: Simplify right side
    90,262.68x = 6,225,010,711.60
  5. Step 5: Solve for x
    x = 6,225,010,711.60/90,262.68
  6. Step 6: Final answer
    x = 68,965.50

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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.