Home / 57,985.27-87,011.35-31,331.32

Finding the Fourth Proportional to 57,985.27, 87,011.35 and 31,331.32

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Solution

The fourth proportional to 57,985.27, 87,011.35 and 31,331.32 is: 47,015.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,985.27 : 87,011.35 = 31,331.32 : x
  2. Step 2: Convert to fraction form
    57,985.27/87,011.35 = 31,331.32/x
  3. Step 3: Cross multiply
    57,985.27x = 87,011.35 × 31,331.32
  4. Step 4: Simplify right side
    57,985.27x = 2,726,180,644.06
  5. Step 5: Solve for x
    x = 2,726,180,644.06/57,985.27
  6. Step 6: Final answer
    x = 47,015.06

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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.