Home / 77,488.08-106,928.82-43,490.76

Finding the Fourth Proportional to 77,488.08, 106,928.82 and 43,490.76

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Solution

The fourth proportional to 77,488.08, 106,928.82 and 43,490.76 is: 60,014.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,488.08 : 106,928.82 = 43,490.76 : x
  2. Step 2: Convert to fraction form
    77,488.08/106,928.82 = 43,490.76/x
  3. Step 3: Cross multiply
    77,488.08x = 106,928.82 × 43,490.76
  4. Step 4: Simplify right side
    77,488.08x = 4,650,415,647.70
  5. Step 5: Solve for x
    x = 4,650,415,647.70/77,488.08
  6. Step 6: Final answer
    x = 60,014.59

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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.