Home / 56,154.44-77,490.42-30,661.76

Finding the Fourth Proportional to 56,154.44, 77,490.42 and 30,661.76

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Solution

The fourth proportional to 56,154.44, 77,490.42 and 30,661.76 is: 42,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,154.44 : 77,490.42 = 30,661.76 : x
  2. Step 2: Convert to fraction form
    56,154.44/77,490.42 = 30,661.76/x
  3. Step 3: Cross multiply
    56,154.44x = 77,490.42 × 30,661.76
  4. Step 4: Simplify right side
    56,154.44x = 2,375,992,660.34
  5. Step 5: Solve for x
    x = 2,375,992,660.34/56,154.44
  6. Step 6: Final answer
    x = 42,311.75

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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.