Home / 52,261.76-72,120.57-28,388.60

Finding the Fourth Proportional to 52,261.76, 72,120.57 and 28,388.60

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Solution

The fourth proportional to 52,261.76, 72,120.57 and 28,388.60 is: 39,175.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,261.76 : 72,120.57 = 28,388.60 : x
  2. Step 2: Convert to fraction form
    52,261.76/72,120.57 = 28,388.60/x
  3. Step 3: Cross multiply
    52,261.76x = 72,120.57 × 28,388.60
  4. Step 4: Simplify right side
    52,261.76x = 2,047,402,013.50
  5. Step 5: Solve for x
    x = 2,047,402,013.50/52,261.76
  6. Step 6: Final answer
    x = 39,175.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.