Home / 85,695.20-118,222.70-51,684.33

Finding the Fourth Proportional to 85,695.20, 118,222.70 and 51,684.33

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Solution

The fourth proportional to 85,695.20, 118,222.70 and 51,684.33 is: 71,302.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,695.20 : 118,222.70 = 51,684.33 : x
  2. Step 2: Convert to fraction form
    85,695.20/118,222.70 = 51,684.33/x
  3. Step 3: Cross multiply
    85,695.20x = 118,222.70 × 51,684.33
  4. Step 4: Simplify right side
    85,695.20x = 6,110,261,040.29
  5. Step 5: Solve for x
    x = 6,110,261,040.29/85,695.20
  6. Step 6: Final answer
    x = 71,302.26

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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.