Home / 57,087.67-78,781.13-31,595.79

Finding the Fourth Proportional to 57,087.67, 78,781.13 and 31,595.79

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Solution

The fourth proportional to 57,087.67, 78,781.13 and 31,595.79 is: 43,602.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,087.67 : 78,781.13 = 31,595.79 : x
  2. Step 2: Convert to fraction form
    57,087.67/78,781.13 = 31,595.79/x
  3. Step 3: Cross multiply
    57,087.67x = 78,781.13 × 31,595.79
  4. Step 4: Simplify right side
    57,087.67x = 2,489,151,999.95
  5. Step 5: Solve for x
    x = 2,489,151,999.95/57,087.67
  6. Step 6: Final answer
    x = 43,602.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.