Home / 77,189.76-106,518.24-43,649.28

Finding the Fourth Proportional to 77,189.76, 106,518.24 and 43,649.28

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Solution

The fourth proportional to 77,189.76, 106,518.24 and 43,649.28 is: 60,233.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,189.76 : 106,518.24 = 43,649.28 : x
  2. Step 2: Convert to fraction form
    77,189.76/106,518.24 = 43,649.28/x
  3. Step 3: Cross multiply
    77,189.76x = 106,518.24 × 43,649.28
  4. Step 4: Simplify right side
    77,189.76x = 4,649,444,482.87
  5. Step 5: Solve for x
    x = 4,649,444,482.87/77,189.76
  6. Step 6: Final answer
    x = 60,233.95

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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.