Home / 74,262.92-111,400.93-20,955.36

Finding the Fourth Proportional to 74,262.92, 111,400.93 and 20,955.36

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Solution

The fourth proportional to 74,262.92, 111,400.93 and 20,955.36 is: 31,434.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,262.92 : 111,400.93 = 20,955.36 : x
  2. Step 2: Convert to fraction form
    74,262.92/111,400.93 = 20,955.36/x
  3. Step 3: Cross multiply
    74,262.92x = 111,400.93 × 20,955.36
  4. Step 4: Simplify right side
    74,262.92x = 2,334,447,036.43
  5. Step 5: Solve for x
    x = 2,334,447,036.43/74,262.92
  6. Step 6: Final answer
    x = 31,434.90

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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.