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Finding the Fourth Proportional to 43,402.40, 65,090.80 and 17,098.40

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Solution

The fourth proportional to 43,402.40, 65,090.80 and 17,098.40 is: 25,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,402.40 : 65,090.80 = 17,098.40 : x
  2. Step 2: Convert to fraction form
    43,402.40/65,090.80 = 17,098.40/x
  3. Step 3: Cross multiply
    43,402.40x = 65,090.80 × 17,098.40
  4. Step 4: Simplify right side
    43,402.40x = 1,112,948,534.72
  5. Step 5: Solve for x
    x = 1,112,948,534.72/43,402.40
  6. Step 6: Final answer
    x = 25,642.56

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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.