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Finding the Fourth Proportional to 65,599.40, 98,403.90 and 18,852.68

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Solution

The fourth proportional to 65,599.40, 98,403.90 and 18,852.68 is: 28,280.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,599.40 : 98,403.90 = 18,852.68 : x
  2. Step 2: Convert to fraction form
    65,599.40/98,403.90 = 18,852.68/x
  3. Step 3: Cross multiply
    65,599.40x = 98,403.90 × 18,852.68
  4. Step 4: Simplify right side
    65,599.40x = 1,855,177,237.45
  5. Step 5: Solve for x
    x = 1,855,177,237.45/65,599.40
  6. Step 6: Final answer
    x = 28,280.40

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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.