Home / 70,956.09-106,434.56-21,036.62

Finding the Fourth Proportional to 70,956.09, 106,434.56 and 21,036.62

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Solution

The fourth proportional to 70,956.09, 106,434.56 and 21,036.62 is: 31,555.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,956.09 : 106,434.56 = 21,036.62 : x
  2. Step 2: Convert to fraction form
    70,956.09/106,434.56 = 21,036.62/x
  3. Step 3: Cross multiply
    70,956.09x = 106,434.56 × 21,036.62
  4. Step 4: Simplify right side
    70,956.09x = 2,239,023,554.49
  5. Step 5: Solve for x
    x = 2,239,023,554.49/70,956.09
  6. Step 6: Final answer
    x = 31,555.06

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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.