Home / 51,601.25-77,405.52-20,436.50

Finding the Fourth Proportional to 51,601.25, 77,405.52 and 20,436.50

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Solution

The fourth proportional to 51,601.25, 77,405.52 and 20,436.50 is: 30,656.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,601.25 : 77,405.52 = 20,436.50 : x
  2. Step 2: Convert to fraction form
    51,601.25/77,405.52 = 20,436.50/x
  3. Step 3: Cross multiply
    51,601.25x = 77,405.52 × 20,436.50
  4. Step 4: Simplify right side
    51,601.25x = 1,581,897,909.48
  5. Step 5: Solve for x
    x = 1,581,897,909.48/51,601.25
  6. Step 6: Final answer
    x = 30,656.19

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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.