Home / 45,614.95-62,945.20-28,618.31

Finding the Fourth Proportional to 45,614.95, 62,945.20 and 28,618.31

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Solution

The fourth proportional to 45,614.95, 62,945.20 and 28,618.31 is: 39,491.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,614.95 : 62,945.20 = 28,618.31 : x
  2. Step 2: Convert to fraction form
    45,614.95/62,945.20 = 28,618.31/x
  3. Step 3: Cross multiply
    45,614.95x = 62,945.20 × 28,618.31
  4. Step 4: Simplify right side
    45,614.95x = 1,801,385,439.75
  5. Step 5: Solve for x
    x = 1,801,385,439.75/45,614.95
  6. Step 6: Final answer
    x = 39,491.12

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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.