Home / 75,319.55-112,979.97-19,159.71

Finding the Fourth Proportional to 75,319.55, 112,979.97 and 19,159.71

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Solution

The fourth proportional to 75,319.55, 112,979.97 and 19,159.71 is: 28,739.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,319.55 : 112,979.97 = 19,159.71 : x
  2. Step 2: Convert to fraction form
    75,319.55/112,979.97 = 19,159.71/x
  3. Step 3: Cross multiply
    75,319.55x = 112,979.97 × 19,159.71
  4. Step 4: Simplify right side
    75,319.55x = 2,164,663,461.01
  5. Step 5: Solve for x
    x = 2,164,663,461.01/75,319.55
  6. Step 6: Final answer
    x = 28,739.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.