Home / 51,275.28-76,940.28-20,110.80

Finding the Fourth Proportional to 51,275.28, 76,940.28 and 20,110.80

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Solution

The fourth proportional to 51,275.28, 76,940.28 and 20,110.80 is: 30,176.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,275.28 : 76,940.28 = 20,110.80 : x
  2. Step 2: Convert to fraction form
    51,275.28/76,940.28 = 20,110.80/x
  3. Step 3: Cross multiply
    51,275.28x = 76,940.28 × 20,110.80
  4. Step 4: Simplify right side
    51,275.28x = 1,547,330,583.02
  5. Step 5: Solve for x
    x = 1,547,330,583.02/51,275.28
  6. Step 6: Final answer
    x = 30,176.93

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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.