Home / 98,378.38-135,748.47-55,932.22

Finding the Fourth Proportional to 98,378.38, 135,748.47 and 55,932.22

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Solution

The fourth proportional to 98,378.38, 135,748.47 and 55,932.22 is: 77,178.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,378.38 : 135,748.47 = 55,932.22 : x
  2. Step 2: Convert to fraction form
    98,378.38/135,748.47 = 55,932.22/x
  3. Step 3: Cross multiply
    98,378.38x = 135,748.47 × 55,932.22
  4. Step 4: Simplify right side
    98,378.38x = 7,592,713,288.70
  5. Step 5: Solve for x
    x = 7,592,713,288.70/98,378.38
  6. Step 6: Final answer
    x = 77,178.68

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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.