Home / 97,789.95-134,949.38-55,347.03

Finding the Fourth Proportional to 97,789.95, 134,949.38 and 55,347.03

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Solution

The fourth proportional to 97,789.95, 134,949.38 and 55,347.03 is: 76,378.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,789.95 : 134,949.38 = 55,347.03 : x
  2. Step 2: Convert to fraction form
    97,789.95/134,949.38 = 55,347.03/x
  3. Step 3: Cross multiply
    97,789.95x = 134,949.38 × 55,347.03
  4. Step 4: Simplify right side
    97,789.95x = 7,469,047,106.61
  5. Step 5: Solve for x
    x = 7,469,047,106.61/97,789.95
  6. Step 6: Final answer
    x = 76,378.47

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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.