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Finding the Fourth Proportional to 87,014.30, 130,521.45 and 52,022.30

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Solution

The fourth proportional to 87,014.30, 130,521.45 and 52,022.30 is: 78,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,014.30 : 130,521.45 = 52,022.30 : x
  2. Step 2: Convert to fraction form
    87,014.30/130,521.45 = 52,022.30/x
  3. Step 3: Cross multiply
    87,014.30x = 130,521.45 × 52,022.30
  4. Step 4: Simplify right side
    87,014.30x = 6,790,026,028.34
  5. Step 5: Solve for x
    x = 6,790,026,028.34/87,014.30
  6. Step 6: Final answer
    x = 78,033.45

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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.