Home / 75,875.72-113,864.36-31,502.52

Finding the Fourth Proportional to 75,875.72, 113,864.36 and 31,502.52

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Solution

The fourth proportional to 75,875.72, 113,864.36 and 31,502.52 is: 47,274.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,875.72 : 113,864.36 = 31,502.52 : x
  2. Step 2: Convert to fraction form
    75,875.72/113,864.36 = 31,502.52/x
  3. Step 3: Cross multiply
    75,875.72x = 113,864.36 × 31,502.52
  4. Step 4: Simplify right side
    75,875.72x = 3,587,014,120.67
  5. Step 5: Solve for x
    x = 3,587,014,120.67/75,875.72
  6. Step 6: Final answer
    x = 47,274.86

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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.