Home / 42,807.90-64,195.29-14,722.62

Finding the Fourth Proportional to 42,807.90, 64,195.29 and 14,722.62

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Solution

The fourth proportional to 42,807.90, 64,195.29 and 14,722.62 is: 22,078.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,807.90 : 64,195.29 = 14,722.62 : x
  2. Step 2: Convert to fraction form
    42,807.90/64,195.29 = 14,722.62/x
  3. Step 3: Cross multiply
    42,807.90x = 64,195.29 × 14,722.62
  4. Step 4: Simplify right side
    42,807.90x = 945,122,860.46
  5. Step 5: Solve for x
    x = 945,122,860.46/42,807.90
  6. Step 6: Final answer
    x = 22,078.23

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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.