Home / 74,106-111,125.40-31,966.20

Finding the Fourth Proportional to 74,106, 111,125.40 and 31,966.20

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Solution

The fourth proportional to 74,106, 111,125.40 and 31,966.20 is: 47,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,106 : 111,125.40 = 31,966.20 : x
  2. Step 2: Convert to fraction form
    74,106/111,125.40 = 31,966.20/x
  3. Step 3: Cross multiply
    74,106x = 111,125.40 × 31,966.20
  4. Step 4: Simplify right side
    74,106x = 3,552,256,761.48
  5. Step 5: Solve for x
    x = 3,552,256,761.48/74,106
  6. Step 6: Final answer
    x = 47,934.81

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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.