Home / 77,359.20-106,745.52-45,521.76

Finding the Fourth Proportional to 77,359.20, 106,745.52 and 45,521.76

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Solution

The fourth proportional to 77,359.20, 106,745.52 and 45,521.76 is: 62,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,359.20 : 106,745.52 = 45,521.76 : x
  2. Step 2: Convert to fraction form
    77,359.20/106,745.52 = 45,521.76/x
  3. Step 3: Cross multiply
    77,359.20x = 106,745.52 × 45,521.76
  4. Step 4: Simplify right side
    77,359.20x = 4,859,243,942.52
  5. Step 5: Solve for x
    x = 4,859,243,942.52/77,359.20
  6. Step 6: Final answer
    x = 62,814.04

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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.