Home / 79,931.16-119,883.30-29,319.72

Finding the Fourth Proportional to 79,931.16, 119,883.30 and 29,319.72

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Solution

The fourth proportional to 79,931.16, 119,883.30 and 29,319.72 is: 43,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,931.16 : 119,883.30 = 29,319.72 : x
  2. Step 2: Convert to fraction form
    79,931.16/119,883.30 = 29,319.72/x
  3. Step 3: Cross multiply
    79,931.16x = 119,883.30 × 29,319.72
  4. Step 4: Simplify right side
    79,931.16x = 3,514,944,788.68
  5. Step 5: Solve for x
    x = 3,514,944,788.68/79,931.16
  6. Step 6: Final answer
    x = 43,974.65

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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.