Home / 57,077.24-78,761.21-38,642.84

Finding the Fourth Proportional to 57,077.24, 78,761.21 and 38,642.84

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Solution

The fourth proportional to 57,077.24, 78,761.21 and 38,642.84 is: 53,323.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,077.24 : 78,761.21 = 38,642.84 : x
  2. Step 2: Convert to fraction form
    57,077.24/78,761.21 = 38,642.84/x
  3. Step 3: Cross multiply
    57,077.24x = 78,761.21 × 38,642.84
  4. Step 4: Simplify right side
    57,077.24x = 3,043,556,761.94
  5. Step 5: Solve for x
    x = 3,043,556,761.94/57,077.24
  6. Step 6: Final answer
    x = 53,323.47

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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.