Home / 91,368.70-126,081.84-55,553.74

Finding the Fourth Proportional to 91,368.70, 126,081.84 and 55,553.74

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Solution

The fourth proportional to 91,368.70, 126,081.84 and 55,553.74 is: 76,659.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,368.70 : 126,081.84 = 55,553.74 : x
  2. Step 2: Convert to fraction form
    91,368.70/126,081.84 = 55,553.74/x
  3. Step 3: Cross multiply
    91,368.70x = 126,081.84 × 55,553.74
  4. Step 4: Simplify right side
    91,368.70x = 7,004,317,758.08
  5. Step 5: Solve for x
    x = 7,004,317,758.08/91,368.70
  6. Step 6: Final answer
    x = 76,659.93

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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.