Home / 77,400.78-106,817.40-58,246.12

Finding the Fourth Proportional to 77,400.78, 106,817.40 and 58,246.12

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Solution

The fourth proportional to 77,400.78, 106,817.40 and 58,246.12 is: 80,382.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,400.78 : 106,817.40 = 58,246.12 : x
  2. Step 2: Convert to fraction form
    77,400.78/106,817.40 = 58,246.12/x
  3. Step 3: Cross multiply
    77,400.78x = 106,817.40 × 58,246.12
  4. Step 4: Simplify right side
    77,400.78x = 6,221,699,098.49
  5. Step 5: Solve for x
    x = 6,221,699,098.49/77,400.78
  6. Step 6: Final answer
    x = 80,382.90

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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.