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Finding the Fourth Proportional to 57,000.06, 78,661.74 and 31,849.56

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Solution

The fourth proportional to 57,000.06, 78,661.74 and 31,849.56 is: 43,953.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,000.06 : 78,661.74 = 31,849.56 : x
  2. Step 2: Convert to fraction form
    57,000.06/78,661.74 = 31,849.56/x
  3. Step 3: Cross multiply
    57,000.06x = 78,661.74 × 31,849.56
  4. Step 4: Simplify right side
    57,000.06x = 2,505,341,807.83
  5. Step 5: Solve for x
    x = 2,505,341,807.83/57,000.06
  6. Step 6: Final answer
    x = 43,953.32

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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.