Home / 77,947.16-116,855.13-31,174.52

Finding the Fourth Proportional to 77,947.16, 116,855.13 and 31,174.52

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Solution

The fourth proportional to 77,947.16, 116,855.13 and 31,174.52 is: 46,735.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,947.16 : 116,855.13 = 31,174.52 : x
  2. Step 2: Convert to fraction form
    77,947.16/116,855.13 = 31,174.52/x
  3. Step 3: Cross multiply
    77,947.16x = 116,855.13 × 31,174.52
  4. Step 4: Simplify right side
    77,947.16x = 3,642,902,587.29
  5. Step 5: Solve for x
    x = 3,642,902,587.29/77,947.16
  6. Step 6: Final answer
    x = 46,735.54

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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.