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Finding the Fourth Proportional to 65,861.63, 98,802.06 and 21,477.48

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Solution

The fourth proportional to 65,861.63, 98,802.06 and 21,477.48 is: 32,219.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,861.63 : 98,802.06 = 21,477.48 : x
  2. Step 2: Convert to fraction form
    65,861.63/98,802.06 = 21,477.48/x
  3. Step 3: Cross multiply
    65,861.63x = 98,802.06 × 21,477.48
  4. Step 4: Simplify right side
    65,861.63x = 2,122,019,267.61
  5. Step 5: Solve for x
    x = 2,122,019,267.61/65,861.63
  6. Step 6: Final answer
    x = 32,219.36

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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.