Home / 85,026,321.92-117,275,882.97-56,754,440.57

Finding the Fourth Proportional to 85,026,321.92, 117,275,882.97 and 56,754,440.57

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Solution

The fourth proportional to 85,026,321.92, 117,275,882.97 and 56,754,440.57 is: 78,280,783.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,026,321.92 : 117,275,882.97 = 56,754,440.57 : x
  2. Step 2: Convert to fraction form
    85,026,321.92/117,275,882.97 = 56,754,440.57/x
  3. Step 3: Cross multiply
    85,026,321.92x = 117,275,882.97 × 56,754,440.57
  4. Step 4: Simplify right side
    85,026,321.92x = 6,655,927,129,728,760
  5. Step 5: Solve for x
    x = 6,655,927,129,728,760/85,026,321.92
  6. Step 6: Final answer
    x = 78,280,783.88

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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.