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Finding the Fourth Proportional to 85,248.33, 117,640.41 and 47,007.21

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Solution

The fourth proportional to 85,248.33, 117,640.41 and 47,007.21 is: 64,868.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248.33 : 117,640.41 = 47,007.21 : x
  2. Step 2: Convert to fraction form
    85,248.33/117,640.41 = 47,007.21/x
  3. Step 3: Cross multiply
    85,248.33x = 117,640.41 × 47,007.21
  4. Step 4: Simplify right side
    85,248.33x = 5,529,947,457.36
  5. Step 5: Solve for x
    x = 5,529,947,457.36/85,248.33
  6. Step 6: Final answer
    x = 64,868.69

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1.5x scale

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.