Home / 91,108.56-125,730.76-50,826

Finding the Fourth Proportional to 91,108.56, 125,730.76 and 50,826

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Solution

The fourth proportional to 91,108.56, 125,730.76 and 50,826 is: 70,140.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,108.56 : 125,730.76 = 50,826 : x
  2. Step 2: Convert to fraction form
    91,108.56/125,730.76 = 50,826/x
  3. Step 3: Cross multiply
    91,108.56x = 125,730.76 × 50,826
  4. Step 4: Simplify right side
    91,108.56x = 6,390,391,607.76
  5. Step 5: Solve for x
    x = 6,390,391,607.76/91,108.56
  6. Step 6: Final answer
    x = 70,140.41

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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.