Home / 78,334.29-117,353.43-60,717.87

Finding the Fourth Proportional to 78,334.29, 117,353.43 and 60,717.87

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Solution

The fourth proportional to 78,334.29, 117,353.43 and 60,717.87 is: 90,962.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,334.29 : 117,353.43 = 60,717.87 : x
  2. Step 2: Convert to fraction form
    78,334.29/117,353.43 = 60,717.87/x
  3. Step 3: Cross multiply
    78,334.29x = 117,353.43 × 60,717.87
  4. Step 4: Simplify right side
    78,334.29x = 7,125,450,306.79
  5. Step 5: Solve for x
    x = 7,125,450,306.79/78,334.29
  6. Step 6: Final answer
    x = 90,962.08

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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.