Home / 91,728.64-126,612.40-59,902.48

Finding the Fourth Proportional to 91,728.64, 126,612.40 and 59,902.48

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Solution

The fourth proportional to 91,728.64, 126,612.40 and 59,902.48 is: 82,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,728.64 : 126,612.40 = 59,902.48 : x
  2. Step 2: Convert to fraction form
    91,728.64/126,612.40 = 59,902.48/x
  3. Step 3: Cross multiply
    91,728.64x = 126,612.40 × 59,902.48
  4. Step 4: Simplify right side
    91,728.64x = 7,584,396,758.75
  5. Step 5: Solve for x
    x = 7,584,396,758.75/91,728.64
  6. Step 6: Final answer
    x = 82,682.97

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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.