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Finding the Fourth Proportional to 57,303.01, 79,076.90 and 31,807.87

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Solution

The fourth proportional to 57,303.01, 79,076.90 and 31,807.87 is: 43,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,303.01 : 79,076.90 = 31,807.87 : x
  2. Step 2: Convert to fraction form
    57,303.01/79,076.90 = 31,807.87/x
  3. Step 3: Cross multiply
    57,303.01x = 79,076.90 × 31,807.87
  4. Step 4: Simplify right side
    57,303.01x = 2,515,267,793.86
  5. Step 5: Solve for x
    x = 2,515,267,793.86/57,303.01
  6. Step 6: Final answer
    x = 43,894.17

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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.