Home / 77,002.14-115,503.18-28,979.76

Finding the Fourth Proportional to 77,002.14, 115,503.18 and 28,979.76

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Solution

The fourth proportional to 77,002.14, 115,503.18 and 28,979.76 is: 43,469.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,002.14 : 115,503.18 = 28,979.76 : x
  2. Step 2: Convert to fraction form
    77,002.14/115,503.18 = 28,979.76/x
  3. Step 3: Cross multiply
    77,002.14x = 115,503.18 × 28,979.76
  4. Step 4: Simplify right side
    77,002.14x = 3,347,254,435.64
  5. Step 5: Solve for x
    x = 3,347,254,435.64/77,002.14
  6. Step 6: Final answer
    x = 43,469.63

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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.