Home / 77,715.64-107,291.82-51,296.44

Finding the Fourth Proportional to 77,715.64, 107,291.82 and 51,296.44

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Solution

The fourth proportional to 77,715.64, 107,291.82 and 51,296.44 is: 70,818.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,715.64 : 107,291.82 = 51,296.44 : x
  2. Step 2: Convert to fraction form
    77,715.64/107,291.82 = 51,296.44/x
  3. Step 3: Cross multiply
    77,715.64x = 107,291.82 × 51,296.44
  4. Step 4: Simplify right side
    77,715.64x = 5,503,688,407.12
  5. Step 5: Solve for x
    x = 5,503,688,407.12/77,715.64
  6. Step 6: Final answer
    x = 70,818.29

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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.