Home / 45,205.57-67,720.08-21,479.35

Finding the Fourth Proportional to 45,205.57, 67,720.08 and 21,479.35

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Solution

The fourth proportional to 45,205.57, 67,720.08 and 21,479.35 is: 32,177.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,205.57 : 67,720.08 = 21,479.35 : x
  2. Step 2: Convert to fraction form
    45,205.57/67,720.08 = 21,479.35/x
  3. Step 3: Cross multiply
    45,205.57x = 67,720.08 × 21,479.35
  4. Step 4: Simplify right side
    45,205.57x = 1,454,583,300.35
  5. Step 5: Solve for x
    x = 1,454,583,300.35/45,205.57
  6. Step 6: Final answer
    x = 32,177.08

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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.