Home / 84,150.10-126,188.22-31,522.66

Finding the Fourth Proportional to 84,150.10, 126,188.22 and 31,522.66

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Solution

The fourth proportional to 84,150.10, 126,188.22 and 31,522.66 is: 47,270.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,150.10 : 126,188.22 = 31,522.66 : x
  2. Step 2: Convert to fraction form
    84,150.10/126,188.22 = 31,522.66/x
  3. Step 3: Cross multiply
    84,150.10x = 126,188.22 × 31,522.66
  4. Step 4: Simplify right side
    84,150.10x = 3,977,788,355.07
  5. Step 5: Solve for x
    x = 3,977,788,355.07/84,150.10
  6. Step 6: Final answer
    x = 47,270.16

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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.