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Finding the Fourth Proportional to 57,055.38, 85,593.06 and 19,619.34

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Solution

The fourth proportional to 57,055.38, 85,593.06 and 19,619.34 is: 29,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,055.38 : 85,593.06 = 19,619.34 : x
  2. Step 2: Convert to fraction form
    57,055.38/85,593.06 = 19,619.34/x
  3. Step 3: Cross multiply
    57,055.38x = 85,593.06 × 19,619.34
  4. Step 4: Simplify right side
    57,055.38x = 1,679,279,345.78
  5. Step 5: Solve for x
    x = 1,679,279,345.78/57,055.38
  6. Step 6: Final answer
    x = 29,432.45

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1.5x scale

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.