Home / 75,929.68-113,895.06-31,508.20

Finding the Fourth Proportional to 75,929.68, 113,895.06 and 31,508.20

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Solution

The fourth proportional to 75,929.68, 113,895.06 and 31,508.20 is: 47,262.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,929.68 : 113,895.06 = 31,508.20 : x
  2. Step 2: Convert to fraction form
    75,929.68/113,895.06 = 31,508.20/x
  3. Step 3: Cross multiply
    75,929.68x = 113,895.06 × 31,508.20
  4. Step 4: Simplify right side
    75,929.68x = 3,588,628,329.49
  5. Step 5: Solve for x
    x = 3,588,628,329.49/75,929.68
  6. Step 6: Final answer
    x = 47,262.52

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1.5x scale

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.