Home / 65,811.20-98,428.80-58,841.60

Finding the Fourth Proportional to 65,811.20, 98,428.80 and 58,841.60

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Solution

The fourth proportional to 65,811.20, 98,428.80 and 58,841.60 is: 88,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,811.20 : 98,428.80 = 58,841.60 : x
  2. Step 2: Convert to fraction form
    65,811.20/98,428.80 = 58,841.60/x
  3. Step 3: Cross multiply
    65,811.20x = 98,428.80 × 58,841.60
  4. Step 4: Simplify right side
    65,811.20x = 5,791,708,078.08
  5. Step 5: Solve for x
    x = 5,791,708,078.08/65,811.20
  6. Step 6: Final answer
    x = 88,004.90

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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.