Home / 57,140.11-78,851.17-31,298.24

Finding the Fourth Proportional to 57,140.11, 78,851.17 and 31,298.24

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Solution

The fourth proportional to 57,140.11, 78,851.17 and 31,298.24 is: 43,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,140.11 : 78,851.17 = 31,298.24 : x
  2. Step 2: Convert to fraction form
    57,140.11/78,851.17 = 31,298.24/x
  3. Step 3: Cross multiply
    57,140.11x = 78,851.17 × 31,298.24
  4. Step 4: Simplify right side
    57,140.11x = 2,467,902,686.45
  5. Step 5: Solve for x
    x = 2,467,902,686.45/57,140.11
  6. Step 6: Final answer
    x = 43,190.38

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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.