Home / 56,426.30-77,867.74-30,934.07

Finding the Fourth Proportional to 56,426.30, 77,867.74 and 30,934.07

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Solution

The fourth proportional to 56,426.30, 77,867.74 and 30,934.07 is: 42,688.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,426.30 : 77,867.74 = 30,934.07 : x
  2. Step 2: Convert to fraction form
    56,426.30/77,867.74 = 30,934.07/x
  3. Step 3: Cross multiply
    56,426.30x = 77,867.74 × 30,934.07
  4. Step 4: Simplify right side
    56,426.30x = 2,408,766,119.90
  5. Step 5: Solve for x
    x = 2,408,766,119.90/56,426.30
  6. Step 6: Final answer
    x = 42,688.71

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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.