Home / 71,075.12-106,612.67-21,155.94

Finding the Fourth Proportional to 71,075.12, 106,612.67 and 21,155.94

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Solution

The fourth proportional to 71,075.12, 106,612.67 and 21,155.94 is: 31,733.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,075.12 : 106,612.67 = 21,155.94 : x
  2. Step 2: Convert to fraction form
    71,075.12/106,612.67 = 21,155.94/x
  3. Step 3: Cross multiply
    71,075.12x = 106,612.67 × 21,155.94
  4. Step 4: Simplify right side
    71,075.12x = 2,255,491,302.65
  5. Step 5: Solve for x
    x = 2,255,491,302.65/71,075.12
  6. Step 6: Final answer
    x = 31,733.91

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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.