Home / 77,026.71-115,533.39-54,633.66

Finding the Fourth Proportional to 77,026.71, 115,533.39 and 54,633.66

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Solution

The fourth proportional to 77,026.71, 115,533.39 and 54,633.66 is: 81,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,026.71 : 115,533.39 = 54,633.66 : x
  2. Step 2: Convert to fraction form
    77,026.71/115,533.39 = 54,633.66/x
  3. Step 3: Cross multiply
    77,026.71x = 115,533.39 × 54,633.66
  4. Step 4: Simplify right side
    77,026.71x = 6,312,011,947.91
  5. Step 5: Solve for x
    x = 6,312,011,947.91/77,026.71
  6. Step 6: Final answer
    x = 81,945.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.