Home / 81,399.23-112,334.39-47,402.24

Finding the Fourth Proportional to 81,399.23, 112,334.39 and 47,402.24

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Solution

The fourth proportional to 81,399.23, 112,334.39 and 47,402.24 is: 65,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,399.23 : 112,334.39 = 47,402.24 : x
  2. Step 2: Convert to fraction form
    81,399.23/112,334.39 = 47,402.24/x
  3. Step 3: Cross multiply
    81,399.23x = 112,334.39 × 47,402.24
  4. Step 4: Simplify right side
    81,399.23x = 5,324,901,227.43
  5. Step 5: Solve for x
    x = 5,324,901,227.43/81,399.23
  6. Step 6: Final answer
    x = 65,417.10

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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.