Home / 56,763.84-78,337.68-31,613.28

Finding the Fourth Proportional to 56,763.84, 78,337.68 and 31,613.28

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Solution

The fourth proportional to 56,763.84, 78,337.68 and 31,613.28 is: 43,628.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,763.84 : 78,337.68 = 31,613.28 : x
  2. Step 2: Convert to fraction form
    56,763.84/78,337.68 = 31,613.28/x
  3. Step 3: Cross multiply
    56,763.84x = 78,337.68 × 31,613.28
  4. Step 4: Simplify right side
    56,763.84x = 2,476,511,012.39
  5. Step 5: Solve for x
    x = 2,476,511,012.39/56,763.84
  6. Step 6: Final answer
    x = 43,628.32

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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.