Home / 57,143.20-85,705.08-15,580.48

Finding the Fourth Proportional to 57,143.20, 85,705.08 and 15,580.48

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Solution

The fourth proportional to 57,143.20, 85,705.08 and 15,580.48 is: 23,368.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,143.20 : 85,705.08 = 15,580.48 : x
  2. Step 2: Convert to fraction form
    57,143.20/85,705.08 = 15,580.48/x
  3. Step 3: Cross multiply
    57,143.20x = 85,705.08 × 15,580.48
  4. Step 4: Simplify right side
    57,143.20x = 1,335,326,284.84
  5. Step 5: Solve for x
    x = 1,335,326,284.84/57,143.20
  6. Step 6: Final answer
    x = 23,368.07

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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.