Home / 79,389.66-109,557.30-43,580.28

Finding the Fourth Proportional to 79,389.66, 109,557.30 and 43,580.28

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Solution

The fourth proportional to 79,389.66, 109,557.30 and 43,580.28 is: 60,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,389.66 : 109,557.30 = 43,580.28 : x
  2. Step 2: Convert to fraction form
    79,389.66/109,557.30 = 43,580.28/x
  3. Step 3: Cross multiply
    79,389.66x = 109,557.30 × 43,580.28
  4. Step 4: Simplify right side
    79,389.66x = 4,774,537,810.04
  5. Step 5: Solve for x
    x = 4,774,537,810.04/79,389.66
  6. Step 6: Final answer
    x = 60,140.55

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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.