Home / 86,125.74-118,860.18-51,671.76

Finding the Fourth Proportional to 86,125.74, 118,860.18 and 51,671.76

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Solution

The fourth proportional to 86,125.74, 118,860.18 and 51,671.76 is: 71,311.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,125.74 : 118,860.18 = 51,671.76 : x
  2. Step 2: Convert to fraction form
    86,125.74/118,860.18 = 51,671.76/x
  3. Step 3: Cross multiply
    86,125.74x = 118,860.18 × 51,671.76
  4. Step 4: Simplify right side
    86,125.74x = 6,141,714,694.52
  5. Step 5: Solve for x
    x = 6,141,714,694.52/86,125.74
  6. Step 6: Final answer
    x = 71,311.02

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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.