Home / 68,436.21-93,756.03-65,877.69

Finding the Fourth Proportional to 68,436.21, 93,756.03 and 65,877.69

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Solution

The fourth proportional to 68,436.21, 93,756.03 and 65,877.69 is: 90,250.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,436.21 : 93,756.03 = 65,877.69 : x
  2. Step 2: Convert to fraction form
    68,436.21/93,756.03 = 65,877.69/x
  3. Step 3: Cross multiply
    68,436.21x = 93,756.03 × 65,877.69
  4. Step 4: Simplify right side
    68,436.21x = 6,176,430,679.97
  5. Step 5: Solve for x
    x = 6,176,430,679.97/68,436.21
  6. Step 6: Final answer
    x = 90,250.92

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.