Home / 56,651.68-78,182.16-31,500.64

Finding the Fourth Proportional to 56,651.68, 78,182.16 and 31,500.64

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Solution

The fourth proportional to 56,651.68, 78,182.16 and 31,500.64 is: 43,472.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,651.68 : 78,182.16 = 31,500.64 : x
  2. Step 2: Convert to fraction form
    56,651.68/78,182.16 = 31,500.64/x
  3. Step 3: Cross multiply
    56,651.68x = 78,182.16 × 31,500.64
  4. Step 4: Simplify right side
    56,651.68x = 2,462,788,076.58
  5. Step 5: Solve for x
    x = 2,462,788,076.58/56,651.68
  6. Step 6: Final answer
    x = 43,472.46

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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.