Home / 79,077.02-109,127.64-43,270.16

Finding the Fourth Proportional to 79,077.02, 109,127.64 and 43,270.16

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Solution

The fourth proportional to 79,077.02, 109,127.64 and 43,270.16 is: 59,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.02 : 109,127.64 = 43,270.16 : x
  2. Step 2: Convert to fraction form
    79,077.02/109,127.64 = 43,270.16/x
  3. Step 3: Cross multiply
    79,077.02x = 109,127.64 × 43,270.16
  4. Step 4: Simplify right side
    79,077.02x = 4,721,970,443.22
  5. Step 5: Solve for x
    x = 4,721,970,443.22/79,077.02
  6. Step 6: Final answer
    x = 59,713.56

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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.