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Finding the Fourth Proportional to 86,758.56, 130,162.75 and 36,147.74

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Solution

The fourth proportional to 86,758.56, 130,162.75 and 36,147.74 is: 54,231.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,758.56 : 130,162.75 = 36,147.74 : x
  2. Step 2: Convert to fraction form
    86,758.56/130,162.75 = 36,147.74/x
  3. Step 3: Cross multiply
    86,758.56x = 130,162.75 × 36,147.74
  4. Step 4: Simplify right side
    86,758.56x = 4,705,088,503.50
  5. Step 5: Solve for x
    x = 4,705,088,503.50/86,758.56
  6. Step 6: Final answer
    x = 54,231.98

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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.