Home / 56,469.84-77,929.42-30,977.51

Finding the Fourth Proportional to 56,469.84, 77,929.42 and 30,977.51

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Solution

The fourth proportional to 56,469.84, 77,929.42 and 30,977.51 is: 42,749.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,469.84 : 77,929.42 = 30,977.51 : x
  2. Step 2: Convert to fraction form
    56,469.84/77,929.42 = 30,977.51/x
  3. Step 3: Cross multiply
    56,469.84x = 77,929.42 × 30,977.51
  4. Step 4: Simplify right side
    56,469.84x = 2,414,059,232.46
  5. Step 5: Solve for x
    x = 2,414,059,232.46/56,469.84
  6. Step 6: Final answer
    x = 42,749.53

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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.