Home / 85,858.12-118,472.92-47,617.21

Finding the Fourth Proportional to 85,858.12, 118,472.92 and 47,617.21

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Solution

The fourth proportional to 85,858.12, 118,472.92 and 47,617.21 is: 65,705.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,858.12 : 118,472.92 = 47,617.21 : x
  2. Step 2: Convert to fraction form
    85,858.12/118,472.92 = 47,617.21/x
  3. Step 3: Cross multiply
    85,858.12x = 118,472.92 × 47,617.21
  4. Step 4: Simplify right side
    85,858.12x = 5,641,349,910.95
  5. Step 5: Solve for x
    x = 5,641,349,910.95/85,858.12
  6. Step 6: Final answer
    x = 65,705.49

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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.