Home / 57,102.06-85,658.79-19,657.18

Finding the Fourth Proportional to 57,102.06, 85,658.79 and 19,657.18

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Solution

The fourth proportional to 57,102.06, 85,658.79 and 19,657.18 is: 29,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,102.06 : 85,658.79 = 19,657.18 : x
  2. Step 2: Convert to fraction form
    57,102.06/85,658.79 = 19,657.18/x
  3. Step 3: Cross multiply
    57,102.06x = 85,658.79 × 19,657.18
  4. Step 4: Simplify right side
    57,102.06x = 1,683,809,825.32
  5. Step 5: Solve for x
    x = 1,683,809,825.32/57,102.06
  6. Step 6: Final answer
    x = 29,487.72

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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.