Home / 75,899.40-113,862.30-31,501.80

Finding the Fourth Proportional to 75,899.40, 113,862.30 and 31,501.80

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Solution

The fourth proportional to 75,899.40, 113,862.30 and 31,501.80 is: 47,258.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,899.40 : 113,862.30 = 31,501.80 : x
  2. Step 2: Convert to fraction form
    75,899.40/113,862.30 = 31,501.80/x
  3. Step 3: Cross multiply
    75,899.40x = 113,862.30 × 31,501.80
  4. Step 4: Simplify right side
    75,899.40x = 3,586,867,402.14
  5. Step 5: Solve for x
    x = 3,586,867,402.14/75,899.40
  6. Step 6: Final answer
    x = 47,258.18

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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.