Home / 79,677.06-109,929.51-45,216.08

Finding the Fourth Proportional to 79,677.06, 109,929.51 and 45,216.08

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Solution

The fourth proportional to 79,677.06, 109,929.51 and 45,216.08 is: 62,384.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,677.06 : 109,929.51 = 45,216.08 : x
  2. Step 2: Convert to fraction form
    79,677.06/109,929.51 = 45,216.08/x
  3. Step 3: Cross multiply
    79,677.06x = 109,929.51 × 45,216.08
  4. Step 4: Simplify right side
    79,677.06x = 4,970,580,968.87
  5. Step 5: Solve for x
    x = 4,970,580,968.87/79,677.06
  6. Step 6: Final answer
    x = 62,384.09

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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.