Home / 77,078.33-115,547.41-29,663.18

Finding the Fourth Proportional to 77,078.33, 115,547.41 and 29,663.18

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Solution

The fourth proportional to 77,078.33, 115,547.41 and 29,663.18 is: 44,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,078.33 : 115,547.41 = 29,663.18 : x
  2. Step 2: Convert to fraction form
    77,078.33/115,547.41 = 29,663.18/x
  3. Step 3: Cross multiply
    77,078.33x = 115,547.41 × 29,663.18
  4. Step 4: Simplify right side
    77,078.33x = 3,427,503,621.36
  5. Step 5: Solve for x
    x = 3,427,503,621.36/77,078.33
  6. Step 6: Final answer
    x = 44,467.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.