Home / 56,313.76-77,713.68-31,165.60

Finding the Fourth Proportional to 56,313.76, 77,713.68 and 31,165.60

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Solution

The fourth proportional to 56,313.76, 77,713.68 and 31,165.60 is: 43,008.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,313.76 : 77,713.68 = 31,165.60 : x
  2. Step 2: Convert to fraction form
    56,313.76/77,713.68 = 31,165.60/x
  3. Step 3: Cross multiply
    56,313.76x = 77,713.68 × 31,165.60
  4. Step 4: Simplify right side
    56,313.76x = 2,421,993,465.41
  5. Step 5: Solve for x
    x = 2,421,993,465.41/56,313.76
  6. Step 6: Final answer
    x = 43,008.91

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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.