Home / 70,934.23-106,416.87-21,018.25

Finding the Fourth Proportional to 70,934.23, 106,416.87 and 21,018.25

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Solution

The fourth proportional to 70,934.23, 106,416.87 and 21,018.25 is: 31,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,934.23 : 106,416.87 = 21,018.25 : x
  2. Step 2: Convert to fraction form
    70,934.23/106,416.87 = 21,018.25/x
  3. Step 3: Cross multiply
    70,934.23x = 106,416.87 × 21,018.25
  4. Step 4: Simplify right side
    70,934.23x = 2,236,696,377.88
  5. Step 5: Solve for x
    x = 2,236,696,377.88/70,934.23
  6. Step 6: Final answer
    x = 31,531.98

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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.