Home / 51,977.76-77,955.20-14,527.78

Finding the Fourth Proportional to 51,977.76, 77,955.20 and 14,527.78

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Solution

The fourth proportional to 51,977.76, 77,955.20 and 14,527.78 is: 21,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,977.76 : 77,955.20 = 14,527.78 : x
  2. Step 2: Convert to fraction form
    51,977.76/77,955.20 = 14,527.78/x
  3. Step 3: Cross multiply
    51,977.76x = 77,955.20 × 14,527.78
  4. Step 4: Simplify right side
    51,977.76x = 1,132,515,995.46
  5. Step 5: Solve for x
    x = 1,132,515,995.46/51,977.76
  6. Step 6: Final answer
    x = 21,788.47

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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.