Home / 51,785.91-77,695.19-18,505.23

Finding the Fourth Proportional to 51,785.91, 77,695.19 and 18,505.23

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Solution

The fourth proportional to 51,785.91, 77,695.19 and 18,505.23 is: 27,763.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,785.91 : 77,695.19 = 18,505.23 : x
  2. Step 2: Convert to fraction form
    51,785.91/77,695.19 = 18,505.23/x
  3. Step 3: Cross multiply
    51,785.91x = 77,695.19 × 18,505.23
  4. Step 4: Simplify right side
    51,785.91x = 1,437,767,268.32
  5. Step 5: Solve for x
    x = 1,437,767,268.32/51,785.91
  6. Step 6: Final answer
    x = 27,763.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.