Home / 75,934.64-113,911.08-31,591.40

Finding the Fourth Proportional to 75,934.64, 113,911.08 and 31,591.40

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Solution

The fourth proportional to 75,934.64, 113,911.08 and 31,591.40 is: 47,390.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,934.64 : 113,911.08 = 31,591.40 : x
  2. Step 2: Convert to fraction form
    75,934.64/113,911.08 = 31,591.40/x
  3. Step 3: Cross multiply
    75,934.64x = 113,911.08 × 31,591.40
  4. Step 4: Simplify right side
    75,934.64x = 3,598,610,492.71
  5. Step 5: Solve for x
    x = 3,598,610,492.71/75,934.64
  6. Step 6: Final answer
    x = 47,390.89

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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.