Home / 75,314.74-112,971.62-19,154.36

Finding the Fourth Proportional to 75,314.74, 112,971.62 and 19,154.36

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Solution

The fourth proportional to 75,314.74, 112,971.62 and 19,154.36 is: 28,731.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,314.74 : 112,971.62 = 19,154.36 : x
  2. Step 2: Convert to fraction form
    75,314.74/112,971.62 = 19,154.36/x
  3. Step 3: Cross multiply
    75,314.74x = 112,971.62 × 19,154.36
  4. Step 4: Simplify right side
    75,314.74x = 2,163,899,014.82
  5. Step 5: Solve for x
    x = 2,163,899,014.82/75,314.74
  6. Step 6: Final answer
    x = 28,731.42

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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.