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Finding the Fourth Proportional to 86,814.30, 130,228.65 and 27,648.30

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Solution

The fourth proportional to 86,814.30, 130,228.65 and 27,648.30 is: 41,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,814.30 : 130,228.65 = 27,648.30 : x
  2. Step 2: Convert to fraction form
    86,814.30/130,228.65 = 27,648.30/x
  3. Step 3: Cross multiply
    86,814.30x = 130,228.65 × 27,648.30
  4. Step 4: Simplify right side
    86,814.30x = 3,600,600,783.80
  5. Step 5: Solve for x
    x = 3,600,600,783.80/86,814.30
  6. Step 6: Final answer
    x = 41,474.74

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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.