Home / 70,924.32-106,386.29-21,008.31

Finding the Fourth Proportional to 70,924.32, 106,386.29 and 21,008.31

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Solution

The fourth proportional to 70,924.32, 106,386.29 and 21,008.31 is: 31,512.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,924.32 : 106,386.29 = 21,008.31 : x
  2. Step 2: Convert to fraction form
    70,924.32/106,386.29 = 21,008.31/x
  3. Step 3: Cross multiply
    70,924.32x = 106,386.29 × 21,008.31
  4. Step 4: Simplify right side
    70,924.32x = 2,234,996,625.30
  5. Step 5: Solve for x
    x = 2,234,996,625.30/70,924.32
  6. Step 6: Final answer
    x = 31,512.41

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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.