Home / 74,428.07-111,643.11-21,838.61

Finding the Fourth Proportional to 74,428.07, 111,643.11 and 21,838.61

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Solution

The fourth proportional to 74,428.07, 111,643.11 and 21,838.61 is: 32,758.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,428.07 : 111,643.11 = 21,838.61 : x
  2. Step 2: Convert to fraction form
    74,428.07/111,643.11 = 21,838.61/x
  3. Step 3: Cross multiply
    74,428.07x = 111,643.11 × 21,838.61
  4. Step 4: Simplify right side
    74,428.07x = 2,438,130,617.58
  5. Step 5: Solve for x
    x = 2,438,130,617.58/74,428.07
  6. Step 6: Final answer
    x = 32,758.22

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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.