Home / 45,727.89-68,934.57-42,679.76

Finding the Fourth Proportional to 45,727.89, 68,934.57 and 42,679.76

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Solution

The fourth proportional to 45,727.89, 68,934.57 and 42,679.76 is: 64,339.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,727.89 : 68,934.57 = 42,679.76 : x
  2. Step 2: Convert to fraction form
    45,727.89/68,934.57 = 42,679.76/x
  3. Step 3: Cross multiply
    45,727.89x = 68,934.57 × 42,679.76
  4. Step 4: Simplify right side
    45,727.89x = 2,942,110,398.58
  5. Step 5: Solve for x
    x = 2,942,110,398.58/45,727.89
  6. Step 6: Final answer
    x = 64,339.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.