Home / 56,364.50-77,788.68-31,214

Finding the Fourth Proportional to 56,364.50, 77,788.68 and 31,214

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Solution

The fourth proportional to 56,364.50, 77,788.68 and 31,214 is: 43,078.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,364.50 : 77,788.68 = 31,214 : x
  2. Step 2: Convert to fraction form
    56,364.50/77,788.68 = 31,214/x
  3. Step 3: Cross multiply
    56,364.50x = 77,788.68 × 31,214
  4. Step 4: Simplify right side
    56,364.50x = 2,428,095,857.52
  5. Step 5: Solve for x
    x = 2,428,095,857.52/56,364.50
  6. Step 6: Final answer
    x = 43,078.46

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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.