Home / 56,313.76-77,715.42-31,163.26

Finding the Fourth Proportional to 56,313.76, 77,715.42 and 31,163.26

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Solution

The fourth proportional to 56,313.76, 77,715.42 and 31,163.26 is: 43,006.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,313.76 : 77,715.42 = 31,163.26 : x
  2. Step 2: Convert to fraction form
    56,313.76/77,715.42 = 31,163.26/x
  3. Step 3: Cross multiply
    56,313.76x = 77,715.42 × 31,163.26
  4. Step 4: Simplify right side
    56,313.76x = 2,421,865,839.47
  5. Step 5: Solve for x
    x = 2,421,865,839.47/56,313.76
  6. Step 6: Final answer
    x = 43,006.64

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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.