Home / 52,657.89-78,860.60-38,388.21

Finding the Fourth Proportional to 52,657.89, 78,860.60 and 38,388.21

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Solution

The fourth proportional to 52,657.89, 78,860.60 and 38,388.21 is: 57,490.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,657.89 : 78,860.60 = 38,388.21 : x
  2. Step 2: Convert to fraction form
    52,657.89/78,860.60 = 38,388.21/x
  3. Step 3: Cross multiply
    52,657.89x = 78,860.60 × 38,388.21
  4. Step 4: Simplify right side
    52,657.89x = 3,027,317,081.58
  5. Step 5: Solve for x
    x = 3,027,317,081.58/52,657.89
  6. Step 6: Final answer
    x = 57,490.28

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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.