Home / 97,876.65-135,069.66-55,443.36

Finding the Fourth Proportional to 97,876.65, 135,069.66 and 55,443.36

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Solution

The fourth proportional to 97,876.65, 135,069.66 and 55,443.36 is: 76,511.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,876.65 : 135,069.66 = 55,443.36 : x
  2. Step 2: Convert to fraction form
    97,876.65/135,069.66 = 55,443.36/x
  3. Step 3: Cross multiply
    97,876.65x = 135,069.66 × 55,443.36
  4. Step 4: Simplify right side
    97,876.65x = 7,488,715,784.46
  5. Step 5: Solve for x
    x = 7,488,715,784.46/97,876.65
  6. Step 6: Final answer
    x = 76,511.77

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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.