Home / 57,671.10-86,490.45-18,240.30

Finding the Fourth Proportional to 57,671.10, 86,490.45 and 18,240.30

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Solution

The fourth proportional to 57,671.10, 86,490.45 and 18,240.30 is: 27,355.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,671.10 : 86,490.45 = 18,240.30 : x
  2. Step 2: Convert to fraction form
    57,671.10/86,490.45 = 18,240.30/x
  3. Step 3: Cross multiply
    57,671.10x = 86,490.45 × 18,240.30
  4. Step 4: Simplify right side
    57,671.10x = 1,577,611,755.14
  5. Step 5: Solve for x
    x = 1,577,611,755.14/57,671.10
  6. Step 6: Final answer
    x = 27,355.33

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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.