Home / 97,891.15-135,089.78-55,449.69

Finding the Fourth Proportional to 97,891.15, 135,089.78 and 55,449.69

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Solution

The fourth proportional to 97,891.15, 135,089.78 and 55,449.69 is: 76,520.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,891.15 : 135,089.78 = 55,449.69 : x
  2. Step 2: Convert to fraction form
    97,891.15/135,089.78 = 55,449.69/x
  3. Step 3: Cross multiply
    97,891.15x = 135,089.78 × 55,449.69
  4. Step 4: Simplify right side
    97,891.15x = 7,490,686,423.17
  5. Step 5: Solve for x
    x = 7,490,686,423.17/97,891.15
  6. Step 6: Final answer
    x = 76,520.57

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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.