Home / 56,410.18-77,847.61-31,259.68

Finding the Fourth Proportional to 56,410.18, 77,847.61 and 31,259.68

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Solution

The fourth proportional to 56,410.18, 77,847.61 and 31,259.68 is: 43,139.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,410.18 : 77,847.61 = 31,259.68 : x
  2. Step 2: Convert to fraction form
    56,410.18/77,847.61 = 31,259.68/x
  3. Step 3: Cross multiply
    56,410.18x = 77,847.61 × 31,259.68
  4. Step 4: Simplify right side
    56,410.18x = 2,433,491,377.36
  5. Step 5: Solve for x
    x = 2,433,491,377.36/56,410.18
  6. Step 6: Final answer
    x = 43,139.22

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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.