Home / 56,471.34-77,930.58-30,977.94

Finding the Fourth Proportional to 56,471.34, 77,930.58 and 30,977.94

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Solution

The fourth proportional to 56,471.34, 77,930.58 and 30,977.94 is: 42,749.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,471.34 : 77,930.58 = 30,977.94 : x
  2. Step 2: Convert to fraction form
    56,471.34/77,930.58 = 30,977.94/x
  3. Step 3: Cross multiply
    56,471.34x = 77,930.58 × 30,977.94
  4. Step 4: Simplify right side
    56,471.34x = 2,414,128,831.41
  5. Step 5: Solve for x
    x = 2,414,128,831.41/56,471.34
  6. Step 6: Final answer
    x = 42,749.63

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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.