Home / 65,681.60-98,529.24-21,306.56

Finding the Fourth Proportional to 65,681.60, 98,529.24 and 21,306.56

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Solution

The fourth proportional to 65,681.60, 98,529.24 and 21,306.56 is: 31,962.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,681.60 : 98,529.24 = 21,306.56 : x
  2. Step 2: Convert to fraction form
    65,681.60/98,529.24 = 21,306.56/x
  3. Step 3: Cross multiply
    65,681.60x = 98,529.24 × 21,306.56
  4. Step 4: Simplify right side
    65,681.60x = 2,099,319,163.81
  5. Step 5: Solve for x
    x = 2,099,319,163.81/65,681.60
  6. Step 6: Final answer
    x = 31,962.06

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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.