Home / 126,349.39-189,523.32-31,579.10

Finding the Fourth Proportional to 126,349.39, 189,523.32 and 31,579.10

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Solution

The fourth proportional to 126,349.39, 189,523.32 and 31,579.10 is: 47,368.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,349.39 : 189,523.32 = 31,579.10 : x
  2. Step 2: Convert to fraction form
    126,349.39/189,523.32 = 31,579.10/x
  3. Step 3: Cross multiply
    126,349.39x = 189,523.32 × 31,579.10
  4. Step 4: Simplify right side
    126,349.39x = 5,984,975,696.92
  5. Step 5: Solve for x
    x = 5,984,975,696.92/126,349.39
  6. Step 6: Final answer
    x = 47,368.46

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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.