Home / 65,123.82-97,685.79-20,750.53

Finding the Fourth Proportional to 65,123.82, 97,685.79 and 20,750.53

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Solution

The fourth proportional to 65,123.82, 97,685.79 and 20,750.53 is: 31,125.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,123.82 : 97,685.79 = 20,750.53 : x
  2. Step 2: Convert to fraction form
    65,123.82/97,685.79 = 20,750.53/x
  3. Step 3: Cross multiply
    65,123.82x = 97,685.79 × 20,750.53
  4. Step 4: Simplify right side
    65,123.82x = 2,027,032,076.98
  5. Step 5: Solve for x
    x = 2,027,032,076.98/65,123.82
  6. Step 6: Final answer
    x = 31,125.82

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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.