Home / 57,543.15-86,312.65-20,103.09

Finding the Fourth Proportional to 57,543.15, 86,312.65 and 20,103.09

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Solution

The fourth proportional to 57,543.15, 86,312.65 and 20,103.09 is: 30,153.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,543.15 : 86,312.65 = 20,103.09 : x
  2. Step 2: Convert to fraction form
    57,543.15/86,312.65 = 20,103.09/x
  3. Step 3: Cross multiply
    57,543.15x = 86,312.65 × 20,103.09
  4. Step 4: Simplify right side
    57,543.15x = 1,735,150,971.09
  5. Step 5: Solve for x
    x = 1,735,150,971.09/57,543.15
  6. Step 6: Final answer
    x = 30,153.91

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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.