Home / 72,471.38-100,011.53-43,787.06

Finding the Fourth Proportional to 72,471.38, 100,011.53 and 43,787.06

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Solution

The fourth proportional to 72,471.38, 100,011.53 and 43,787.06 is: 60,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,471.38 : 100,011.53 = 43,787.06 : x
  2. Step 2: Convert to fraction form
    72,471.38/100,011.53 = 43,787.06/x
  3. Step 3: Cross multiply
    72,471.38x = 100,011.53 × 43,787.06
  4. Step 4: Simplify right side
    72,471.38x = 4,379,210,474.21
  5. Step 5: Solve for x
    x = 4,379,210,474.21/72,471.38
  6. Step 6: Final answer
    x = 60,426.75

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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.