Home / 77,826.84-115,999.92-73,397.76

Finding the Fourth Proportional to 77,826.84, 115,999.92 and 73,397.76

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Solution

The fourth proportional to 77,826.84, 115,999.92 and 73,397.76 is: 109,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,826.84 : 115,999.92 = 73,397.76 : x
  2. Step 2: Convert to fraction form
    77,826.84/115,999.92 = 73,397.76/x
  3. Step 3: Cross multiply
    77,826.84x = 115,999.92 × 73,397.76
  4. Step 4: Simplify right side
    77,826.84x = 8,514,134,288.18
  5. Step 5: Solve for x
    x = 8,514,134,288.18/77,826.84
  6. Step 6: Final answer
    x = 109,398.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.