Home / 51,119.28-70,540.56-28,456.56

Finding the Fourth Proportional to 51,119.28, 70,540.56 and 28,456.56

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Solution

The fourth proportional to 51,119.28, 70,540.56 and 28,456.56 is: 39,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,119.28 : 70,540.56 = 28,456.56 : x
  2. Step 2: Convert to fraction form
    51,119.28/70,540.56 = 28,456.56/x
  3. Step 3: Cross multiply
    51,119.28x = 70,540.56 × 28,456.56
  4. Step 4: Simplify right side
    51,119.28x = 2,007,341,678.07
  5. Step 5: Solve for x
    x = 2,007,341,678.07/51,119.28
  6. Step 6: Final answer
    x = 39,267.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.