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Finding the Fourth Proportional to 65,523.60, 98,139.60 and 56,775.60

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Solution

The fourth proportional to 65,523.60, 98,139.60 and 56,775.60 is: 85,037.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,523.60 : 98,139.60 = 56,775.60 : x
  2. Step 2: Convert to fraction form
    65,523.60/98,139.60 = 56,775.60/x
  3. Step 3: Cross multiply
    65,523.60x = 98,139.60 × 56,775.60
  4. Step 4: Simplify right side
    65,523.60x = 5,571,934,673.76
  5. Step 5: Solve for x
    x = 5,571,934,673.76/65,523.60
  6. Step 6: Final answer
    x = 85,037.07

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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.