Home / 77,899.72-116,765.34-31,101.16

Finding the Fourth Proportional to 77,899.72, 116,765.34 and 31,101.16

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Solution

The fourth proportional to 77,899.72, 116,765.34 and 31,101.16 is: 46,618.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,899.72 : 116,765.34 = 31,101.16 : x
  2. Step 2: Convert to fraction form
    77,899.72/116,765.34 = 31,101.16/x
  3. Step 3: Cross multiply
    77,899.72x = 116,765.34 × 31,101.16
  4. Step 4: Simplify right side
    77,899.72x = 3,631,537,521.79
  5. Step 5: Solve for x
    x = 3,631,537,521.79/77,899.72
  6. Step 6: Final answer
    x = 46,618.11

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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.