Home / 56,463.36-77,919.48-31,313.04

Finding the Fourth Proportional to 56,463.36, 77,919.48 and 31,313.04

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Solution

The fourth proportional to 56,463.36, 77,919.48 and 31,313.04 is: 43,212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,463.36 : 77,919.48 = 31,313.04 : x
  2. Step 2: Convert to fraction form
    56,463.36/77,919.48 = 31,313.04/x
  3. Step 3: Cross multiply
    56,463.36x = 77,919.48 × 31,313.04
  4. Step 4: Simplify right side
    56,463.36x = 2,439,895,794.02
  5. Step 5: Solve for x
    x = 2,439,895,794.02/56,463.36
  6. Step 6: Final answer
    x = 43,212.02

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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.