Home / 51,490.38-71,020.08-47,255.12

Finding the Fourth Proportional to 51,490.38, 71,020.08 and 47,255.12

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Solution

The fourth proportional to 51,490.38, 71,020.08 and 47,255.12 is: 65,178.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,490.38 : 71,020.08 = 47,255.12 : x
  2. Step 2: Convert to fraction form
    51,490.38/71,020.08 = 47,255.12/x
  3. Step 3: Cross multiply
    51,490.38x = 71,020.08 × 47,255.12
  4. Step 4: Simplify right side
    51,490.38x = 3,356,062,047.71
  5. Step 5: Solve for x
    x = 3,356,062,047.71/51,490.38
  6. Step 6: Final answer
    x = 65,178.43

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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.