Home / 57,056.67-85,549-19,613.40

Finding the Fourth Proportional to 57,056.67, 85,549 and 19,613.40

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Solution

The fourth proportional to 57,056.67, 85,549 and 19,613.40 is: 29,407.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,056.67 : 85,549 = 19,613.40 : x
  2. Step 2: Convert to fraction form
    57,056.67/85,549 = 19,613.40/x
  3. Step 3: Cross multiply
    57,056.67x = 85,549 × 19,613.40
  4. Step 4: Simplify right side
    57,056.67x = 1,677,906,756.60
  5. Step 5: Solve for x
    x = 1,677,906,756.60/57,056.67
  6. Step 6: Final answer
    x = 29,407.73

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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.