Home / 70,220.24-105,366-40,664.96

Finding the Fourth Proportional to 70,220.24, 105,366 and 40,664.96

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Solution

The fourth proportional to 70,220.24, 105,366 and 40,664.96 is: 61,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,220.24 : 105,366 = 40,664.96 : x
  2. Step 2: Convert to fraction form
    70,220.24/105,366 = 40,664.96/x
  3. Step 3: Cross multiply
    70,220.24x = 105,366 × 40,664.96
  4. Step 4: Simplify right side
    70,220.24x = 4,284,704,175.36
  5. Step 5: Solve for x
    x = 4,284,704,175.36/70,220.24
  6. Step 6: Final answer
    x = 61,018.08

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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.