Home / 77,016.21-115,537.45-34,337.12

Finding the Fourth Proportional to 77,016.21, 115,537.45 and 34,337.12

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Solution

The fourth proportional to 77,016.21, 115,537.45 and 34,337.12 is: 51,511.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,016.21 : 115,537.45 = 34,337.12 : x
  2. Step 2: Convert to fraction form
    77,016.21/115,537.45 = 34,337.12/x
  3. Step 3: Cross multiply
    77,016.21x = 115,537.45 × 34,337.12
  4. Step 4: Simplify right side
    77,016.21x = 3,967,223,520.34
  5. Step 5: Solve for x
    x = 3,967,223,520.34/77,016.21
  6. Step 6: Final answer
    x = 51,511.54

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1.5x scale

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.