Home / 98,377.88-135,747.78-55,931.72

Finding the Fourth Proportional to 98,377.88, 135,747.78 and 55,931.72

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Solution

The fourth proportional to 98,377.88, 135,747.78 and 55,931.72 is: 77,177.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,377.88 : 135,747.78 = 55,931.72 : x
  2. Step 2: Convert to fraction form
    98,377.88/135,747.78 = 55,931.72/x
  3. Step 3: Cross multiply
    98,377.88x = 135,747.78 × 55,931.72
  4. Step 4: Simplify right side
    98,377.88x = 7,592,606,821.58
  5. Step 5: Solve for x
    x = 7,592,606,821.58/98,377.88
  6. Step 6: Final answer
    x = 77,177.99

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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.