Home / 51,288.75-70,780.92-28,932.75

Finding the Fourth Proportional to 51,288.75, 70,780.92 and 28,932.75

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Solution

The fourth proportional to 51,288.75, 70,780.92 and 28,932.75 is: 39,928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,288.75 : 70,780.92 = 28,932.75 : x
  2. Step 2: Convert to fraction form
    51,288.75/70,780.92 = 28,932.75/x
  3. Step 3: Cross multiply
    51,288.75x = 70,780.92 × 28,932.75
  4. Step 4: Simplify right side
    51,288.75x = 2,047,886,663.13
  5. Step 5: Solve for x
    x = 2,047,886,663.13/51,288.75
  6. Step 6: Final answer
    x = 39,928.57

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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.