Home / 84,811.60-127,217.40-51,596.80

Finding the Fourth Proportional to 84,811.60, 127,217.40 and 51,596.80

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Solution

The fourth proportional to 84,811.60, 127,217.40 and 51,596.80 is: 77,395.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,811.60 : 127,217.40 = 51,596.80 : x
  2. Step 2: Convert to fraction form
    84,811.60/127,217.40 = 51,596.80/x
  3. Step 3: Cross multiply
    84,811.60x = 127,217.40 × 51,596.80
  4. Step 4: Simplify right side
    84,811.60x = 6,564,010,744.32
  5. Step 5: Solve for x
    x = 6,564,010,744.32/84,811.60
  6. Step 6: Final answer
    x = 77,395.20

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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.