Home / 70,490.18-105,758.97-26,120.51

Finding the Fourth Proportional to 70,490.18, 105,758.97 and 26,120.51

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Solution

The fourth proportional to 70,490.18, 105,758.97 and 26,120.51 is: 39,189.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,490.18 : 105,758.97 = 26,120.51 : x
  2. Step 2: Convert to fraction form
    70,490.18/105,758.97 = 26,120.51/x
  3. Step 3: Cross multiply
    70,490.18x = 105,758.97 × 26,120.51
  4. Step 4: Simplify right side
    70,490.18x = 2,762,478,003.32
  5. Step 5: Solve for x
    x = 2,762,478,003.32/70,490.18
  6. Step 6: Final answer
    x = 39,189.54

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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.