Home / 52,257.60-78,386.40-17,200.80

Finding the Fourth Proportional to 52,257.60, 78,386.40 and 17,200.80

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Solution

The fourth proportional to 52,257.60, 78,386.40 and 17,200.80 is: 25,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,257.60 : 78,386.40 = 17,200.80 : x
  2. Step 2: Convert to fraction form
    52,257.60/78,386.40 = 17,200.80/x
  3. Step 3: Cross multiply
    52,257.60x = 78,386.40 × 17,200.80
  4. Step 4: Simplify right side
    52,257.60x = 1,348,308,789.12
  5. Step 5: Solve for x
    x = 1,348,308,789.12/52,257.60
  6. Step 6: Final answer
    x = 25,801.20

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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.