Home / 57,122.24-78,832.32-31,979.84

Finding the Fourth Proportional to 57,122.24, 78,832.32 and 31,979.84

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Solution

The fourth proportional to 57,122.24, 78,832.32 and 31,979.84 is: 44,134.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,122.24 : 78,832.32 = 31,979.84 : x
  2. Step 2: Convert to fraction form
    57,122.24/78,832.32 = 31,979.84/x
  3. Step 3: Cross multiply
    57,122.24x = 78,832.32 × 31,979.84
  4. Step 4: Simplify right side
    57,122.24x = 2,521,044,980.43
  5. Step 5: Solve for x
    x = 2,521,044,980.43/57,122.24
  6. Step 6: Final answer
    x = 44,134.21

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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.