Home / 77,927.52-107,579.08-51,111.12

Finding the Fourth Proportional to 77,927.52, 107,579.08 and 51,111.12

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Solution

The fourth proportional to 77,927.52, 107,579.08 and 51,111.12 is: 70,558.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,927.52 : 107,579.08 = 51,111.12 : x
  2. Step 2: Convert to fraction form
    77,927.52/107,579.08 = 51,111.12/x
  3. Step 3: Cross multiply
    77,927.52x = 107,579.08 × 51,111.12
  4. Step 4: Simplify right side
    77,927.52x = 5,498,486,601.70
  5. Step 5: Solve for x
    x = 5,498,486,601.70/77,927.52
  6. Step 6: Final answer
    x = 70,558.99

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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.