Home / 76,623.23-105,738.40-44,359.21

Finding the Fourth Proportional to 76,623.23, 105,738.40 and 44,359.21

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Solution

The fourth proportional to 76,623.23, 105,738.40 and 44,359.21 is: 61,214.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,623.23 : 105,738.40 = 44,359.21 : x
  2. Step 2: Convert to fraction form
    76,623.23/105,738.40 = 44,359.21/x
  3. Step 3: Cross multiply
    76,623.23x = 105,738.40 × 44,359.21
  4. Step 4: Simplify right side
    76,623.23x = 4,690,472,203.05
  5. Step 5: Solve for x
    x = 4,690,472,203.05/76,623.23
  6. Step 6: Final answer
    x = 61,214.76

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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.