Home / 85,552.72-128,296.41-34,245.70

Finding the Fourth Proportional to 85,552.72, 128,296.41 and 34,245.70

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Solution

The fourth proportional to 85,552.72, 128,296.41 and 34,245.70 is: 51,355.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,552.72 : 128,296.41 = 34,245.70 : x
  2. Step 2: Convert to fraction form
    85,552.72/128,296.41 = 34,245.70/x
  3. Step 3: Cross multiply
    85,552.72x = 128,296.41 × 34,245.70
  4. Step 4: Simplify right side
    85,552.72x = 4,393,599,918.77
  5. Step 5: Solve for x
    x = 4,393,599,918.77/85,552.72
  6. Step 6: Final answer
    x = 51,355.47

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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.