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Finding the Fourth Proportional to 65,266.60, 98,118.60 and 55,643.80

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Solution

The fourth proportional to 65,266.60, 98,118.60 and 55,643.80 is: 83,652.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,266.60 : 98,118.60 = 55,643.80 : x
  2. Step 2: Convert to fraction form
    65,266.60/98,118.60 = 55,643.80/x
  3. Step 3: Cross multiply
    65,266.60x = 98,118.60 × 55,643.80
  4. Step 4: Simplify right side
    65,266.60x = 5,459,691,754.68
  5. Step 5: Solve for x
    x = 5,459,691,754.68/65,266.60
  6. Step 6: Final answer
    x = 83,652.16

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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.