Home / 70,953.30-106,399.11-20,341.18

Finding the Fourth Proportional to 70,953.30, 106,399.11 and 20,341.18

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Solution

The fourth proportional to 70,953.30, 106,399.11 and 20,341.18 is: 30,502.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,953.30 : 106,399.11 = 20,341.18 : x
  2. Step 2: Convert to fraction form
    70,953.30/106,399.11 = 20,341.18/x
  3. Step 3: Cross multiply
    70,953.30x = 106,399.11 × 20,341.18
  4. Step 4: Simplify right side
    70,953.30x = 2,164,283,790.63
  5. Step 5: Solve for x
    x = 2,164,283,790.63/70,953.30
  6. Step 6: Final answer
    x = 30,502.93

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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.