Home / 57,402.02-79,215.73-31,561.66

Finding the Fourth Proportional to 57,402.02, 79,215.73 and 31,561.66

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Solution

The fourth proportional to 57,402.02, 79,215.73 and 31,561.66 is: 43,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,402.02 : 79,215.73 = 31,561.66 : x
  2. Step 2: Convert to fraction form
    57,402.02/79,215.73 = 31,561.66/x
  3. Step 3: Cross multiply
    57,402.02x = 79,215.73 × 31,561.66
  4. Step 4: Simplify right side
    57,402.02x = 2,500,179,936.91
  5. Step 5: Solve for x
    x = 2,500,179,936.91/57,402.02
  6. Step 6: Final answer
    x = 43,555.61

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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.