Home / 76,687.72-115,060.86-29,973.16

Finding the Fourth Proportional to 76,687.72, 115,060.86 and 29,973.16

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Solution

The fourth proportional to 76,687.72, 115,060.86 and 29,973.16 is: 44,971.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,687.72 : 115,060.86 = 29,973.16 : x
  2. Step 2: Convert to fraction form
    76,687.72/115,060.86 = 29,973.16/x
  3. Step 3: Cross multiply
    76,687.72x = 115,060.86 × 29,973.16
  4. Step 4: Simplify right side
    76,687.72x = 3,448,737,566.52
  5. Step 5: Solve for x
    x = 3,448,737,566.52/76,687.72
  6. Step 6: Final answer
    x = 44,971.18

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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.