Home / 75,870.45-113,856.47-31,497.24

Finding the Fourth Proportional to 75,870.45, 113,856.47 and 31,497.24

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Solution

The fourth proportional to 75,870.45, 113,856.47 and 31,497.24 is: 47,266.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,870.45 : 113,856.47 = 31,497.24 : x
  2. Step 2: Convert to fraction form
    75,870.45/113,856.47 = 31,497.24/x
  3. Step 3: Cross multiply
    75,870.45x = 113,856.47 × 31,497.24
  4. Step 4: Simplify right side
    75,870.45x = 3,586,164,403.66
  5. Step 5: Solve for x
    x = 3,586,164,403.66/75,870.45
  6. Step 6: Final answer
    x = 47,266.95

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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.