Home / 79,261.56-118,857.78-29,979

Finding the Fourth Proportional to 79,261.56, 118,857.78 and 29,979

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Solution

The fourth proportional to 79,261.56, 118,857.78 and 29,979 is: 44,955.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261.56 : 118,857.78 = 29,979 : x
  2. Step 2: Convert to fraction form
    79,261.56/118,857.78 = 29,979/x
  3. Step 3: Cross multiply
    79,261.56x = 118,857.78 × 29,979
  4. Step 4: Simplify right side
    79,261.56x = 3,563,237,386.62
  5. Step 5: Solve for x
    x = 3,563,237,386.62/79,261.56
  6. Step 6: Final answer
    x = 44,955.43

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1.5x scale

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.