Home / 97,910.80-135,124.68-55,479.76

Finding the Fourth Proportional to 97,910.80, 135,124.68 and 55,479.76

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Solution

The fourth proportional to 97,910.80, 135,124.68 and 55,479.76 is: 76,566.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,910.80 : 135,124.68 = 55,479.76 : x
  2. Step 2: Convert to fraction form
    97,910.80/135,124.68 = 55,479.76/x
  3. Step 3: Cross multiply
    97,910.80x = 135,124.68 × 55,479.76
  4. Step 4: Simplify right side
    97,910.80x = 7,496,684,816.48
  5. Step 5: Solve for x
    x = 7,496,684,816.48/97,910.80
  6. Step 6: Final answer
    x = 76,566.47

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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.