Home / 64,885.18-97,342.19-19,912.79

Finding the Fourth Proportional to 64,885.18, 97,342.19 and 19,912.79

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Solution

The fourth proportional to 64,885.18, 97,342.19 and 19,912.79 is: 29,873.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,885.18 : 97,342.19 = 19,912.79 : x
  2. Step 2: Convert to fraction form
    64,885.18/97,342.19 = 19,912.79/x
  3. Step 3: Cross multiply
    64,885.18x = 97,342.19 × 19,912.79
  4. Step 4: Simplify right side
    64,885.18x = 1,938,354,587.61
  5. Step 5: Solve for x
    x = 1,938,354,587.61/64,885.18
  6. Step 6: Final answer
    x = 29,873.61

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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.