Home / 52,261.06-72,121.60-28,389.10

Finding the Fourth Proportional to 52,261.06, 72,121.60 and 28,389.10

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Solution

The fourth proportional to 52,261.06, 72,121.60 and 28,389.10 is: 39,177.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,261.06 : 72,121.60 = 28,389.10 : x
  2. Step 2: Convert to fraction form
    52,261.06/72,121.60 = 28,389.10/x
  3. Step 3: Cross multiply
    52,261.06x = 72,121.60 × 28,389.10
  4. Step 4: Simplify right side
    52,261.06x = 2,047,467,314.56
  5. Step 5: Solve for x
    x = 2,047,467,314.56/52,261.06
  6. Step 6: Final answer
    x = 39,177.68

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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.