Home / 43,132.40-64,676.72-19,738.78

Finding the Fourth Proportional to 43,132.40, 64,676.72 and 19,738.78

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Solution

The fourth proportional to 43,132.40, 64,676.72 and 19,738.78 is: 29,598.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,132.40 : 64,676.72 = 19,738.78 : x
  2. Step 2: Convert to fraction form
    43,132.40/64,676.72 = 19,738.78/x
  3. Step 3: Cross multiply
    43,132.40x = 64,676.72 × 19,738.78
  4. Step 4: Simplify right side
    43,132.40x = 1,276,639,547.20
  5. Step 5: Solve for x
    x = 1,276,639,547.20/43,132.40
  6. Step 6: Final answer
    x = 29,598.16

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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.