Home / 55,426.28-76,490.34-30,275.96

Finding the Fourth Proportional to 55,426.28, 76,490.34 and 30,275.96

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Solution

The fourth proportional to 55,426.28, 76,490.34 and 30,275.96 is: 41,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,426.28 : 76,490.34 = 30,275.96 : x
  2. Step 2: Convert to fraction form
    55,426.28/76,490.34 = 30,275.96/x
  3. Step 3: Cross multiply
    55,426.28x = 76,490.34 × 30,275.96
  4. Step 4: Simplify right side
    55,426.28x = 2,315,818,474.23
  5. Step 5: Solve for x
    x = 2,315,818,474.23/55,426.28
  6. Step 6: Final answer
    x = 41,781.96

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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.