Home / 56,917.88-78,552.08-40,555.88

Finding the Fourth Proportional to 56,917.88, 78,552.08 and 40,555.88

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Solution

The fourth proportional to 56,917.88, 78,552.08 and 40,555.88 is: 55,970.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,917.88 : 78,552.08 = 40,555.88 : x
  2. Step 2: Convert to fraction form
    56,917.88/78,552.08 = 40,555.88/x
  3. Step 3: Cross multiply
    56,917.88x = 78,552.08 × 40,555.88
  4. Step 4: Simplify right side
    56,917.88x = 3,185,748,730.23
  5. Step 5: Solve for x
    x = 3,185,748,730.23/56,917.88
  6. Step 6: Final answer
    x = 55,970.97

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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.