Home / 45,421.60-68,132.40-17,719.60

Finding the Fourth Proportional to 45,421.60, 68,132.40 and 17,719.60

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Solution

The fourth proportional to 45,421.60, 68,132.40 and 17,719.60 is: 26,579.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,421.60 : 68,132.40 = 17,719.60 : x
  2. Step 2: Convert to fraction form
    45,421.60/68,132.40 = 17,719.60/x
  3. Step 3: Cross multiply
    45,421.60x = 68,132.40 × 17,719.60
  4. Step 4: Simplify right side
    45,421.60x = 1,207,278,875.04
  5. Step 5: Solve for x
    x = 1,207,278,875.04/45,421.60
  6. Step 6: Final answer
    x = 26,579.40

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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.