Home / 65,314.87-97,986.14-20,972.76

Finding the Fourth Proportional to 65,314.87, 97,986.14 and 20,972.76

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Solution

The fourth proportional to 65,314.87, 97,986.14 and 20,972.76 is: 31,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,314.87 : 97,986.14 = 20,972.76 : x
  2. Step 2: Convert to fraction form
    65,314.87/97,986.14 = 20,972.76/x
  3. Step 3: Cross multiply
    65,314.87x = 97,986.14 × 20,972.76
  4. Step 4: Simplify right side
    65,314.87x = 2,055,039,905.74
  5. Step 5: Solve for x
    x = 2,055,039,905.74/65,314.87
  6. Step 6: Final answer
    x = 31,463.58

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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.