Home / 90,934.47-125,488.71-50,645.88

Finding the Fourth Proportional to 90,934.47, 125,488.71 and 50,645.88

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Solution

The fourth proportional to 90,934.47, 125,488.71 and 50,645.88 is: 69,890.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,934.47 : 125,488.71 = 50,645.88 : x
  2. Step 2: Convert to fraction form
    90,934.47/125,488.71 = 50,645.88/x
  3. Step 3: Cross multiply
    90,934.47x = 125,488.71 × 50,645.88
  4. Step 4: Simplify right side
    90,934.47x = 6,355,486,148.01
  5. Step 5: Solve for x
    x = 6,355,486,148.01/90,934.47
  6. Step 6: Final answer
    x = 69,890.84

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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.