Home / 57,971.37-86,961.12-18,531.66

Finding the Fourth Proportional to 57,971.37, 86,961.12 and 18,531.66

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Solution

The fourth proportional to 57,971.37, 86,961.12 and 18,531.66 is: 27,798.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,971.37 : 86,961.12 = 18,531.66 : x
  2. Step 2: Convert to fraction form
    57,971.37/86,961.12 = 18,531.66/x
  3. Step 3: Cross multiply
    57,971.37x = 86,961.12 × 18,531.66
  4. Step 4: Simplify right side
    57,971.37x = 1,611,533,909.06
  5. Step 5: Solve for x
    x = 1,611,533,909.06/57,971.37
  6. Step 6: Final answer
    x = 27,798.79

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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.