Home / 72,719.37-109,068.12-25,341.66

Finding the Fourth Proportional to 72,719.37, 109,068.12 and 25,341.66

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Solution

The fourth proportional to 72,719.37, 109,068.12 and 25,341.66 is: 38,008.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,719.37 : 109,068.12 = 25,341.66 : x
  2. Step 2: Convert to fraction form
    72,719.37/109,068.12 = 25,341.66/x
  3. Step 3: Cross multiply
    72,719.37x = 109,068.12 × 25,341.66
  4. Step 4: Simplify right side
    72,719.37x = 2,763,967,213.88
  5. Step 5: Solve for x
    x = 2,763,967,213.88/72,719.37
  6. Step 6: Final answer
    x = 38,008.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.