Home / 40,725.72-61,146.90-30,228.12

Finding the Fourth Proportional to 40,725.72, 61,146.90 and 30,228.12

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Solution

The fourth proportional to 40,725.72, 61,146.90 and 30,228.12 is: 45,385.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,725.72 : 61,146.90 = 30,228.12 : x
  2. Step 2: Convert to fraction form
    40,725.72/61,146.90 = 30,228.12/x
  3. Step 3: Cross multiply
    40,725.72x = 61,146.90 × 30,228.12
  4. Step 4: Simplify right side
    40,725.72x = 1,848,355,830.83
  5. Step 5: Solve for x
    x = 1,848,355,830.83/40,725.72
  6. Step 6: Final answer
    x = 45,385.47

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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.