Home / 56,605.68-78,112.99-31,454.64

Finding the Fourth Proportional to 56,605.68, 78,112.99 and 31,454.64

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Solution

The fourth proportional to 56,605.68, 78,112.99 and 31,454.64 is: 43,405.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,605.68 : 78,112.99 = 31,454.64 : x
  2. Step 2: Convert to fraction form
    56,605.68/78,112.99 = 31,454.64/x
  3. Step 3: Cross multiply
    56,605.68x = 78,112.99 × 31,454.64
  4. Step 4: Simplify right side
    56,605.68x = 2,457,015,822.50
  5. Step 5: Solve for x
    x = 2,457,015,822.50/56,605.68
  6. Step 6: Final answer
    x = 43,405.82

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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.