Home / 77,111.62-115,668.24-27,182.40

Finding the Fourth Proportional to 77,111.62, 115,668.24 and 27,182.40

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Solution

The fourth proportional to 77,111.62, 115,668.24 and 27,182.40 is: 40,773.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,111.62 : 115,668.24 = 27,182.40 : x
  2. Step 2: Convert to fraction form
    77,111.62/115,668.24 = 27,182.40/x
  3. Step 3: Cross multiply
    77,111.62x = 115,668.24 × 27,182.40
  4. Step 4: Simplify right side
    77,111.62x = 3,144,140,366.98
  5. Step 5: Solve for x
    x = 3,144,140,366.98/77,111.62
  6. Step 6: Final answer
    x = 40,773.89

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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.