Home / 85,320.70-117,736.08-47,081.77

Finding the Fourth Proportional to 85,320.70, 117,736.08 and 47,081.77

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Solution

The fourth proportional to 85,320.70, 117,736.08 and 47,081.77 is: 64,969.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,320.70 : 117,736.08 = 47,081.77 : x
  2. Step 2: Convert to fraction form
    85,320.70/117,736.08 = 47,081.77/x
  3. Step 3: Cross multiply
    85,320.70x = 117,736.08 × 47,081.77
  4. Step 4: Simplify right side
    85,320.70x = 5,543,223,039.26
  5. Step 5: Solve for x
    x = 5,543,223,039.26/85,320.70
  6. Step 6: Final answer
    x = 64,969.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.