Home / 45,155.04-67,732.71-11,872.31

Finding the Fourth Proportional to 45,155.04, 67,732.71 and 11,872.31

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Solution

The fourth proportional to 45,155.04, 67,732.71 and 11,872.31 is: 17,808.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,155.04 : 67,732.71 = 11,872.31 : x
  2. Step 2: Convert to fraction form
    45,155.04/67,732.71 = 11,872.31/x
  3. Step 3: Cross multiply
    45,155.04x = 67,732.71 × 11,872.31
  4. Step 4: Simplify right side
    45,155.04x = 804,143,347.08
  5. Step 5: Solve for x
    x = 804,143,347.08/45,155.04
  6. Step 6: Final answer
    x = 17,808.50

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1.5x scale

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.