Home / 76,897.22-115,353.05-28,853.01

Finding the Fourth Proportional to 76,897.22, 115,353.05 and 28,853.01

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Solution

The fourth proportional to 76,897.22, 115,353.05 and 28,853.01 is: 43,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,897.22 : 115,353.05 = 28,853.01 : x
  2. Step 2: Convert to fraction form
    76,897.22/115,353.05 = 28,853.01/x
  3. Step 3: Cross multiply
    76,897.22x = 115,353.05 × 28,853.01
  4. Step 4: Simplify right side
    76,897.22x = 3,328,282,560.92
  5. Step 5: Solve for x
    x = 3,328,282,560.92/76,897.22
  6. Step 6: Final answer
    x = 43,282.22

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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.