Home / 51,180.12-70,630.74-28,519.13

Finding the Fourth Proportional to 51,180.12, 70,630.74 and 28,519.13

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Solution

The fourth proportional to 51,180.12, 70,630.74 and 28,519.13 is: 39,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,180.12 : 70,630.74 = 28,519.13 : x
  2. Step 2: Convert to fraction form
    51,180.12/70,630.74 = 28,519.13/x
  3. Step 3: Cross multiply
    51,180.12x = 70,630.74 × 28,519.13
  4. Step 4: Simplify right side
    51,180.12x = 2,014,327,432.63
  5. Step 5: Solve for x
    x = 2,014,327,432.63/51,180.12
  6. Step 6: Final answer
    x = 39,357.61

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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.