Home / 42,572.75-63,859.10-20,078.19

Finding the Fourth Proportional to 42,572.75, 63,859.10 and 20,078.19

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Solution

The fourth proportional to 42,572.75, 63,859.10 and 20,078.19 is: 30,117.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,572.75 : 63,859.10 = 20,078.19 : x
  2. Step 2: Convert to fraction form
    42,572.75/63,859.10 = 20,078.19/x
  3. Step 3: Cross multiply
    42,572.75x = 63,859.10 × 20,078.19
  4. Step 4: Simplify right side
    42,572.75x = 1,282,175,042.64
  5. Step 5: Solve for x
    x = 1,282,175,042.64/42,572.75
  6. Step 6: Final answer
    x = 30,117.27

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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.