Home / 77,948.90-107,497.76-51,081.66

Finding the Fourth Proportional to 77,948.90, 107,497.76 and 51,081.66

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Solution

The fourth proportional to 77,948.90, 107,497.76 and 51,081.66 is: 70,445.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,948.90 : 107,497.76 = 51,081.66 : x
  2. Step 2: Convert to fraction form
    77,948.90/107,497.76 = 51,081.66/x
  3. Step 3: Cross multiply
    77,948.90x = 107,497.76 × 51,081.66
  4. Step 4: Simplify right side
    77,948.90x = 5,491,164,027.08
  5. Step 5: Solve for x
    x = 5,491,164,027.08/77,948.90
  6. Step 6: Final answer
    x = 70,445.69

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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.