Home / 42,722.75-64,085.13-14,642.58

Finding the Fourth Proportional to 42,722.75, 64,085.13 and 14,642.58

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Solution

The fourth proportional to 42,722.75, 64,085.13 and 14,642.58 is: 21,964.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,722.75 : 64,085.13 = 14,642.58 : x
  2. Step 2: Convert to fraction form
    42,722.75/64,085.13 = 14,642.58/x
  3. Step 3: Cross multiply
    42,722.75x = 64,085.13 × 14,642.58
  4. Step 4: Simplify right side
    42,722.75x = 938,371,642.84
  5. Step 5: Solve for x
    x = 938,371,642.84/42,722.75
  6. Step 6: Final answer
    x = 21,964.21

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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.