Home / 74,827.86-103,280.10-43,015.20

Finding the Fourth Proportional to 74,827.86, 103,280.10 and 43,015.20

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Solution

The fourth proportional to 74,827.86, 103,280.10 and 43,015.20 is: 59,371.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,827.86 : 103,280.10 = 43,015.20 : x
  2. Step 2: Convert to fraction form
    74,827.86/103,280.10 = 43,015.20/x
  3. Step 3: Cross multiply
    74,827.86x = 103,280.10 × 43,015.20
  4. Step 4: Simplify right side
    74,827.86x = 4,442,614,157.52
  5. Step 5: Solve for x
    x = 4,442,614,157.52/74,827.86
  6. Step 6: Final answer
    x = 59,371.12

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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.