Home / 72,683.96-109,072.02-39,426.68

Finding the Fourth Proportional to 72,683.96, 109,072.02 and 39,426.68

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Solution

The fourth proportional to 72,683.96, 109,072.02 and 39,426.68 is: 59,165.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,683.96 : 109,072.02 = 39,426.68 : x
  2. Step 2: Convert to fraction form
    72,683.96/109,072.02 = 39,426.68/x
  3. Step 3: Cross multiply
    72,683.96x = 109,072.02 × 39,426.68
  4. Step 4: Simplify right side
    72,683.96x = 4,300,347,629.49
  5. Step 5: Solve for x
    x = 4,300,347,629.49/72,683.96
  6. Step 6: Final answer
    x = 59,165.02

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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.