Home / 85,209.20-127,955.48-53,262.26

Finding the Fourth Proportional to 85,209.20, 127,955.48 and 53,262.26

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Solution

The fourth proportional to 85,209.20, 127,955.48 and 53,262.26 is: 79,981.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,209.20 : 127,955.48 = 53,262.26 : x
  2. Step 2: Convert to fraction form
    85,209.20/127,955.48 = 53,262.26/x
  3. Step 3: Cross multiply
    85,209.20x = 127,955.48 × 53,262.26
  4. Step 4: Simplify right side
    85,209.20x = 6,815,197,917.53
  5. Step 5: Solve for x
    x = 6,815,197,917.53/85,209.20
  6. Step 6: Final answer
    x = 79,981.95

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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.