Home / 72,719.90-109,079.94-62,829.26

Finding the Fourth Proportional to 72,719.90, 109,079.94 and 62,829.26

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Solution

The fourth proportional to 72,719.90, 109,079.94 and 62,829.26 is: 94,243.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,719.90 : 109,079.94 = 62,829.26 : x
  2. Step 2: Convert to fraction form
    72,719.90/109,079.94 = 62,829.26/x
  3. Step 3: Cross multiply
    72,719.90x = 109,079.94 × 62,829.26
  4. Step 4: Simplify right side
    72,719.90x = 6,853,411,911.04
  5. Step 5: Solve for x
    x = 6,853,411,911.04/72,719.90
  6. Step 6: Final answer
    x = 94,243.97

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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.