Home / 85,859.12-118,474.30-47,618.21

Finding the Fourth Proportional to 85,859.12, 118,474.30 and 47,618.21

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Solution

The fourth proportional to 85,859.12, 118,474.30 and 47,618.21 is: 65,706.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,859.12 : 118,474.30 = 47,618.21 : x
  2. Step 2: Convert to fraction form
    85,859.12/118,474.30 = 47,618.21/x
  3. Step 3: Cross multiply
    85,859.12x = 118,474.30 × 47,618.21
  4. Step 4: Simplify right side
    85,859.12x = 5,641,534,097.00
  5. Step 5: Solve for x
    x = 5,641,534,097.00/85,859.12
  6. Step 6: Final answer
    x = 65,706.87

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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.