Home / 85,174.72-127,670.34-40,706.93

Finding the Fourth Proportional to 85,174.72, 127,670.34 and 40,706.93

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Solution

The fourth proportional to 85,174.72, 127,670.34 and 40,706.93 is: 61,016.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,174.72 : 127,670.34 = 40,706.93 : x
  2. Step 2: Convert to fraction form
    85,174.72/127,670.34 = 40,706.93/x
  3. Step 3: Cross multiply
    85,174.72x = 127,670.34 × 40,706.93
  4. Step 4: Simplify right side
    85,174.72x = 5,197,067,593.46
  5. Step 5: Solve for x
    x = 5,197,067,593.46/85,174.72
  6. Step 6: Final answer
    x = 61,016.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.