Home / 91,277.20-136,582.76-53,855.20

Finding the Fourth Proportional to 91,277.20, 136,582.76 and 53,855.20

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Solution

The fourth proportional to 91,277.20, 136,582.76 and 53,855.20 is: 80,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,277.20 : 136,582.76 = 53,855.20 : x
  2. Step 2: Convert to fraction form
    91,277.20/136,582.76 = 53,855.20/x
  3. Step 3: Cross multiply
    91,277.20x = 136,582.76 × 53,855.20
  4. Step 4: Simplify right side
    91,277.20x = 7,355,692,063.17
  5. Step 5: Solve for x
    x = 7,355,692,063.17/91,277.20
  6. Step 6: Final answer
    x = 80,586.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.