Home / 87,219.18-130,816.41-28,047.30

Finding the Fourth Proportional to 87,219.18, 130,816.41 and 28,047.30

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Solution

The fourth proportional to 87,219.18, 130,816.41 and 28,047.30 is: 42,066.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,219.18 : 130,816.41 = 28,047.30 : x
  2. Step 2: Convert to fraction form
    87,219.18/130,816.41 = 28,047.30/x
  3. Step 3: Cross multiply
    87,219.18x = 130,816.41 × 28,047.30
  4. Step 4: Simplify right side
    87,219.18x = 3,669,047,096.19
  5. Step 5: Solve for x
    x = 3,669,047,096.19/87,219.18
  6. Step 6: Final answer
    x = 42,066.98

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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.