Home / 48,408.90-72,613.35-31,820.10

Finding the Fourth Proportional to 48,408.90, 72,613.35 and 31,820.10

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Solution

The fourth proportional to 48,408.90, 72,613.35 and 31,820.10 is: 47,730.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,408.90 : 72,613.35 = 31,820.10 : x
  2. Step 2: Convert to fraction form
    48,408.90/72,613.35 = 31,820.10/x
  3. Step 3: Cross multiply
    48,408.90x = 72,613.35 × 31,820.10
  4. Step 4: Simplify right side
    48,408.90x = 2,310,564,058.34
  5. Step 5: Solve for x
    x = 2,310,564,058.34/48,408.90
  6. Step 6: Final answer
    x = 47,730.15

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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.