Home / 51,988.14-78,016.80-28,301.66

Finding the Fourth Proportional to 51,988.14, 78,016.80 and 28,301.66

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Solution

The fourth proportional to 51,988.14, 78,016.80 and 28,301.66 is: 42,471.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.14 : 78,016.80 = 28,301.66 : x
  2. Step 2: Convert to fraction form
    51,988.14/78,016.80 = 28,301.66/x
  3. Step 3: Cross multiply
    51,988.14x = 78,016.80 × 28,301.66
  4. Step 4: Simplify right side
    51,988.14x = 2,208,004,947.89
  5. Step 5: Solve for x
    x = 2,208,004,947.89/51,988.14
  6. Step 6: Final answer
    x = 42,471.32

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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.