Home / 65,159.16-97,736.70-20,788.56

Finding the Fourth Proportional to 65,159.16, 97,736.70 and 20,788.56

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Solution

The fourth proportional to 65,159.16, 97,736.70 and 20,788.56 is: 31,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,159.16 : 97,736.70 = 20,788.56 : x
  2. Step 2: Convert to fraction form
    65,159.16/97,736.70 = 20,788.56/x
  3. Step 3: Cross multiply
    65,159.16x = 97,736.70 × 20,788.56
  4. Step 4: Simplify right side
    65,159.16x = 2,031,805,252.15
  5. Step 5: Solve for x
    x = 2,031,805,252.15/65,159.16
  6. Step 6: Final answer
    x = 31,182.19

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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.