Home / 42,760.44-64,070.53-30,219.21

Finding the Fourth Proportional to 42,760.44, 64,070.53 and 30,219.21

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Solution

The fourth proportional to 42,760.44, 64,070.53 and 30,219.21 is: 45,279.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,760.44 : 64,070.53 = 30,219.21 : x
  2. Step 2: Convert to fraction form
    42,760.44/64,070.53 = 30,219.21/x
  3. Step 3: Cross multiply
    42,760.44x = 64,070.53 × 30,219.21
  4. Step 4: Simplify right side
    42,760.44x = 1,936,160,725.33
  5. Step 5: Solve for x
    x = 1,936,160,725.33/42,760.44
  6. Step 6: Final answer
    x = 45,279.25

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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.