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Finding the Fourth Proportional to 57,979.78, 80,018.54 and 32,490.28

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Solution

The fourth proportional to 57,979.78, 80,018.54 and 32,490.28 is: 44,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,979.78 : 80,018.54 = 32,490.28 : x
  2. Step 2: Convert to fraction form
    57,979.78/80,018.54 = 32,490.28/x
  3. Step 3: Cross multiply
    57,979.78x = 80,018.54 × 32,490.28
  4. Step 4: Simplify right side
    57,979.78x = 2,599,824,769.79
  5. Step 5: Solve for x
    x = 2,599,824,769.79/57,979.78
  6. Step 6: Final answer
    x = 44,840.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.