Home / 56,829.25-78,424.37-31,678.75

Finding the Fourth Proportional to 56,829.25, 78,424.37 and 31,678.75

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Solution

The fourth proportional to 56,829.25, 78,424.37 and 31,678.75 is: 43,716.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,829.25 : 78,424.37 = 31,678.75 : x
  2. Step 2: Convert to fraction form
    56,829.25/78,424.37 = 31,678.75/x
  3. Step 3: Cross multiply
    56,829.25x = 78,424.37 × 31,678.75
  4. Step 4: Simplify right side
    56,829.25x = 2,484,386,011.14
  5. Step 5: Solve for x
    x = 2,484,386,011.14/56,829.25
  6. Step 6: Final answer
    x = 43,716.68

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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.