Home / 91,835.78-137,622.24-52,311.22

Finding the Fourth Proportional to 91,835.78, 137,622.24 and 52,311.22

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Solution

The fourth proportional to 91,835.78, 137,622.24 and 52,311.22 is: 78,391.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,835.78 : 137,622.24 = 52,311.22 : x
  2. Step 2: Convert to fraction form
    91,835.78/137,622.24 = 52,311.22/x
  3. Step 3: Cross multiply
    91,835.78x = 137,622.24 × 52,311.22
  4. Step 4: Simplify right side
    91,835.78x = 7,199,186,929.48
  5. Step 5: Solve for x
    x = 7,199,186,929.48/91,835.78
  6. Step 6: Final answer
    x = 78,391.97

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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.