Home / 75,985.71-113,977.30-29,248.71

Finding the Fourth Proportional to 75,985.71, 113,977.30 and 29,248.71

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Solution

The fourth proportional to 75,985.71, 113,977.30 and 29,248.71 is: 43,872.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,985.71 : 113,977.30 = 29,248.71 : x
  2. Step 2: Convert to fraction form
    75,985.71/113,977.30 = 29,248.71/x
  3. Step 3: Cross multiply
    75,985.71x = 113,977.30 × 29,248.71
  4. Step 4: Simplify right side
    75,985.71x = 3,333,688,994.28
  5. Step 5: Solve for x
    x = 3,333,688,994.28/75,985.71
  6. Step 6: Final answer
    x = 43,872.58

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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.