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Finding the Fourth Proportional to 65,681.80, 98,522.70 and 18,296.80

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Solution

The fourth proportional to 65,681.80, 98,522.70 and 18,296.80 is: 27,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,681.80 : 98,522.70 = 18,296.80 : x
  2. Step 2: Convert to fraction form
    65,681.80/98,522.70 = 18,296.80/x
  3. Step 3: Cross multiply
    65,681.80x = 98,522.70 × 18,296.80
  4. Step 4: Simplify right side
    65,681.80x = 1,802,650,137.36
  5. Step 5: Solve for x
    x = 1,802,650,137.36/65,681.80
  6. Step 6: Final answer
    x = 27,445.20

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1.5x scale

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.