Home / 90,318.42-124,561.08-67,708.44

Finding the Fourth Proportional to 90,318.42, 124,561.08 and 67,708.44

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Solution

The fourth proportional to 90,318.42, 124,561.08 and 67,708.44 is: 93,378.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,318.42 : 124,561.08 = 67,708.44 : x
  2. Step 2: Convert to fraction form
    90,318.42/124,561.08 = 67,708.44/x
  3. Step 3: Cross multiply
    90,318.42x = 124,561.08 × 67,708.44
  4. Step 4: Simplify right side
    90,318.42x = 8,433,836,411.52
  5. Step 5: Solve for x
    x = 8,433,836,411.52/90,318.42
  6. Step 6: Final answer
    x = 93,378.92

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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.