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Finding the Fourth Proportional to 65,259.60, 97,874.64 and 30,180

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Solution

The fourth proportional to 65,259.60, 97,874.64 and 30,180 is: 45,263.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,259.60 : 97,874.64 = 30,180 : x
  2. Step 2: Convert to fraction form
    65,259.60/97,874.64 = 30,180/x
  3. Step 3: Cross multiply
    65,259.60x = 97,874.64 × 30,180
  4. Step 4: Simplify right side
    65,259.60x = 2,953,856,635.20
  5. Step 5: Solve for x
    x = 2,953,856,635.20/65,259.60
  6. Step 6: Final answer
    x = 45,263.17

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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.