Home / 81,472.16-112,399.08-47,475.56

Finding the Fourth Proportional to 81,472.16, 112,399.08 and 47,475.56

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Solution

The fourth proportional to 81,472.16, 112,399.08 and 47,475.56 is: 65,497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,472.16 : 112,399.08 = 47,475.56 : x
  2. Step 2: Convert to fraction form
    81,472.16/112,399.08 = 47,475.56/x
  3. Step 3: Cross multiply
    81,472.16x = 112,399.08 × 47,475.56
  4. Step 4: Simplify right side
    81,472.16x = 5,336,209,266.48
  5. Step 5: Solve for x
    x = 5,336,209,266.48/81,472.16
  6. Step 6: Final answer
    x = 65,497.33

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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.