Home / 74,088.88-111,212.28-31,989.52

Finding the Fourth Proportional to 74,088.88, 111,212.28 and 31,989.52

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Solution

The fourth proportional to 74,088.88, 111,212.28 and 31,989.52 is: 48,018.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,088.88 : 111,212.28 = 31,989.52 : x
  2. Step 2: Convert to fraction form
    74,088.88/111,212.28 = 31,989.52/x
  3. Step 3: Cross multiply
    74,088.88x = 111,212.28 × 31,989.52
  4. Step 4: Simplify right side
    74,088.88x = 3,557,627,455.31
  5. Step 5: Solve for x
    x = 3,557,627,455.31/74,088.88
  6. Step 6: Final answer
    x = 48,018.37

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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.