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Finding the Fourth Proportional to 60,263.70, 90,395.70 and 18,143.90

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Solution

The fourth proportional to 60,263.70, 90,395.70 and 18,143.90 is: 27,215.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,263.70 : 90,395.70 = 18,143.90 : x
  2. Step 2: Convert to fraction form
    60,263.70/90,395.70 = 18,143.90/x
  3. Step 3: Cross multiply
    60,263.70x = 90,395.70 × 18,143.90
  4. Step 4: Simplify right side
    60,263.70x = 1,640,130,360.20
  5. Step 5: Solve for x
    x = 1,640,130,360.20/60,263.70
  6. Step 6: Final answer
    x = 27,215.89

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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.