Home / 51,440.76-71,012.52-38,698.80

Finding the Fourth Proportional to 51,440.76, 71,012.52 and 38,698.80

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Solution

The fourth proportional to 51,440.76, 71,012.52 and 38,698.80 is: 53,422.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,440.76 : 71,012.52 = 38,698.80 : x
  2. Step 2: Convert to fraction form
    51,440.76/71,012.52 = 38,698.80/x
  3. Step 3: Cross multiply
    51,440.76x = 71,012.52 × 38,698.80
  4. Step 4: Simplify right side
    51,440.76x = 2,748,099,430.15
  5. Step 5: Solve for x
    x = 2,748,099,430.15/51,440.76
  6. Step 6: Final answer
    x = 53,422.61

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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.