Home / 51,615.92-77,428.68-14,176.40

Finding the Fourth Proportional to 51,615.92, 77,428.68 and 14,176.40

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Solution

The fourth proportional to 51,615.92, 77,428.68 and 14,176.40 is: 21,265.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,615.92 : 77,428.68 = 14,176.40 : x
  2. Step 2: Convert to fraction form
    51,615.92/77,428.68 = 14,176.40/x
  3. Step 3: Cross multiply
    51,615.92x = 77,428.68 × 14,176.40
  4. Step 4: Simplify right side
    51,615.92x = 1,097,659,939.15
  5. Step 5: Solve for x
    x = 1,097,659,939.15/51,615.92
  6. Step 6: Final answer
    x = 21,265.92

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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.