Home / 77,871.30-107,509.07-51,060.58

Finding the Fourth Proportional to 77,871.30, 107,509.07 and 51,060.58

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Solution

The fourth proportional to 77,871.30, 107,509.07 and 51,060.58 is: 70,494.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,871.30 : 107,509.07 = 51,060.58 : x
  2. Step 2: Convert to fraction form
    77,871.30/107,509.07 = 51,060.58/x
  3. Step 3: Cross multiply
    77,871.30x = 107,509.07 × 51,060.58
  4. Step 4: Simplify right side
    77,871.30x = 5,489,475,469.46
  5. Step 5: Solve for x
    x = 5,489,475,469.46/77,871.30
  6. Step 6: Final answer
    x = 70,494.21

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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.