Home / 77,664.94-107,195.33-54,980.35

Finding the Fourth Proportional to 77,664.94, 107,195.33 and 54,980.35

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Solution

The fourth proportional to 77,664.94, 107,195.33 and 54,980.35 is: 75,885.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,664.94 : 107,195.33 = 54,980.35 : x
  2. Step 2: Convert to fraction form
    77,664.94/107,195.33 = 54,980.35/x
  3. Step 3: Cross multiply
    77,664.94x = 107,195.33 × 54,980.35
  4. Step 4: Simplify right side
    77,664.94x = 5,893,636,761.77
  5. Step 5: Solve for x
    x = 5,893,636,761.77/77,664.94
  6. Step 6: Final answer
    x = 75,885.42

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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.