Home / 51,042.90-70,443.14-30,625.74

Finding the Fourth Proportional to 51,042.90, 70,443.14 and 30,625.74

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Solution

The fourth proportional to 51,042.90, 70,443.14 and 30,625.74 is: 42,265.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,042.90 : 70,443.14 = 30,625.74 : x
  2. Step 2: Convert to fraction form
    51,042.90/70,443.14 = 30,625.74/x
  3. Step 3: Cross multiply
    51,042.90x = 70,443.14 × 30,625.74
  4. Step 4: Simplify right side
    51,042.90x = 2,157,373,290.42
  5. Step 5: Solve for x
    x = 2,157,373,290.42/51,042.90
  6. Step 6: Final answer
    x = 42,265.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.