Home / 75,683.40-104,439.02-41,690.72

Finding the Fourth Proportional to 75,683.40, 104,439.02 and 41,690.72

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Solution

The fourth proportional to 75,683.40, 104,439.02 and 41,690.72 is: 57,530.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,683.40 : 104,439.02 = 41,690.72 : x
  2. Step 2: Convert to fraction form
    75,683.40/104,439.02 = 41,690.72/x
  3. Step 3: Cross multiply
    75,683.40x = 104,439.02 × 41,690.72
  4. Step 4: Simplify right side
    75,683.40x = 4,354,137,939.89
  5. Step 5: Solve for x
    x = 4,354,137,939.89/75,683.40
  6. Step 6: Final answer
    x = 57,530.95

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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.