Home / 87,107.30-130,810-53,570.22

Finding the Fourth Proportional to 87,107.30, 130,810 and 53,570.22

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Solution

The fourth proportional to 87,107.30, 130,810 and 53,570.22 is: 80,446.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,107.30 : 130,810 = 53,570.22 : x
  2. Step 2: Convert to fraction form
    87,107.30/130,810 = 53,570.22/x
  3. Step 3: Cross multiply
    87,107.30x = 130,810 × 53,570.22
  4. Step 4: Simplify right side
    87,107.30x = 7,007,520,478.20
  5. Step 5: Solve for x
    x = 7,007,520,478.20/87,107.30
  6. Step 6: Final answer
    x = 80,446.99

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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.