Home / 74,521.68-102,826.44-42,683.28

Finding the Fourth Proportional to 74,521.68, 102,826.44 and 42,683.28

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Solution

The fourth proportional to 74,521.68, 102,826.44 and 42,683.28 is: 58,895.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,521.68 : 102,826.44 = 42,683.28 : x
  2. Step 2: Convert to fraction form
    74,521.68/102,826.44 = 42,683.28/x
  3. Step 3: Cross multiply
    74,521.68x = 102,826.44 × 42,683.28
  4. Step 4: Simplify right side
    74,521.68x = 4,388,969,729.92
  5. Step 5: Solve for x
    x = 4,388,969,729.92/74,521.68
  6. Step 6: Final answer
    x = 58,895.21

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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.