Home / 40,712.10-61,076.87-12,631.55

Finding the Fourth Proportional to 40,712.10, 61,076.87 and 12,631.55

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Solution

The fourth proportional to 40,712.10, 61,076.87 and 12,631.55 is: 18,950.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,712.10 : 61,076.87 = 12,631.55 : x
  2. Step 2: Convert to fraction form
    40,712.10/61,076.87 = 12,631.55/x
  3. Step 3: Cross multiply
    40,712.10x = 61,076.87 × 12,631.55
  4. Step 4: Simplify right side
    40,712.10x = 771,495,537.25
  5. Step 5: Solve for x
    x = 771,495,537.25/40,712.10
  6. Step 6: Final answer
    x = 18,950.03

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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.