Home / 74,927.32-112,398.51-21,620.62

Finding the Fourth Proportional to 74,927.32, 112,398.51 and 21,620.62

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Solution

The fourth proportional to 74,927.32, 112,398.51 and 21,620.62 is: 32,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,927.32 : 112,398.51 = 21,620.62 : x
  2. Step 2: Convert to fraction form
    74,927.32/112,398.51 = 21,620.62/x
  3. Step 3: Cross multiply
    74,927.32x = 112,398.51 × 21,620.62
  4. Step 4: Simplify right side
    74,927.32x = 2,430,125,473.28
  5. Step 5: Solve for x
    x = 2,430,125,473.28/74,927.32
  6. Step 6: Final answer
    x = 32,433.10

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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.