Home / 70,529.12-105,719.26-23,131.82

Finding the Fourth Proportional to 70,529.12, 105,719.26 and 23,131.82

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Solution

The fourth proportional to 70,529.12, 105,719.26 and 23,131.82 is: 34,673.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,529.12 : 105,719.26 = 23,131.82 : x
  2. Step 2: Convert to fraction form
    70,529.12/105,719.26 = 23,131.82/x
  3. Step 3: Cross multiply
    70,529.12x = 105,719.26 × 23,131.82
  4. Step 4: Simplify right side
    70,529.12x = 2,445,478,892.85
  5. Step 5: Solve for x
    x = 2,445,478,892.85/70,529.12
  6. Step 6: Final answer
    x = 34,673.32

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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.