Home / 76,601.61-115,010.06-39,188.52

Finding the Fourth Proportional to 76,601.61, 115,010.06 and 39,188.52

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Solution

The fourth proportional to 76,601.61, 115,010.06 and 39,188.52 is: 58,837.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,601.61 : 115,010.06 = 39,188.52 : x
  2. Step 2: Convert to fraction form
    76,601.61/115,010.06 = 39,188.52/x
  3. Step 3: Cross multiply
    76,601.61x = 115,010.06 × 39,188.52
  4. Step 4: Simplify right side
    76,601.61x = 4,507,074,036.51
  5. Step 5: Solve for x
    x = 4,507,074,036.51/76,601.61
  6. Step 6: Final answer
    x = 58,837.85

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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.