Home / 45,486.54-62,811-28,519.92

Finding the Fourth Proportional to 45,486.54, 62,811 and 28,519.92

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Solution

The fourth proportional to 45,486.54, 62,811 and 28,519.92 is: 39,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,486.54 : 62,811 = 28,519.92 : x
  2. Step 2: Convert to fraction form
    45,486.54/62,811 = 28,519.92/x
  3. Step 3: Cross multiply
    45,486.54x = 62,811 × 28,519.92
  4. Step 4: Simplify right side
    45,486.54x = 1,791,364,695.12
  5. Step 5: Solve for x
    x = 1,791,364,695.12/45,486.54
  6. Step 6: Final answer
    x = 39,382.30

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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.