Home / 80,663.64-111,299.46-47,123.16

Finding the Fourth Proportional to 80,663.64, 111,299.46 and 47,123.16

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Solution

The fourth proportional to 80,663.64, 111,299.46 and 47,123.16 is: 65,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,663.64 : 111,299.46 = 47,123.16 : x
  2. Step 2: Convert to fraction form
    80,663.64/111,299.46 = 47,123.16/x
  3. Step 3: Cross multiply
    80,663.64x = 111,299.46 × 47,123.16
  4. Step 4: Simplify right side
    80,663.64x = 5,244,782,261.49
  5. Step 5: Solve for x
    x = 5,244,782,261.49/80,663.64
  6. Step 6: Final answer
    x = 65,020.40

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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.