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Finding the Fourth Proportional to 87,027.40, 130,541.10 and 69,531.40

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Solution

The fourth proportional to 87,027.40, 130,541.10 and 69,531.40 is: 104,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,027.40 : 130,541.10 = 69,531.40 : x
  2. Step 2: Convert to fraction form
    87,027.40/130,541.10 = 69,531.40/x
  3. Step 3: Cross multiply
    87,027.40x = 130,541.10 × 69,531.40
  4. Step 4: Simplify right side
    87,027.40x = 9,076,705,440.54
  5. Step 5: Solve for x
    x = 9,076,705,440.54/87,027.40
  6. Step 6: Final answer
    x = 104,297.10

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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.