Home / 77,120.87-106,432.22-43,132.52

Finding the Fourth Proportional to 77,120.87, 106,432.22 and 43,132.52

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Solution

The fourth proportional to 77,120.87, 106,432.22 and 43,132.52 is: 59,525.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,120.87 : 106,432.22 = 43,132.52 : x
  2. Step 2: Convert to fraction form
    77,120.87/106,432.22 = 43,132.52/x
  3. Step 3: Cross multiply
    77,120.87x = 106,432.22 × 43,132.52
  4. Step 4: Simplify right side
    77,120.87x = 4,590,689,271.72
  5. Step 5: Solve for x
    x = 4,590,689,271.72/77,120.87
  6. Step 6: Final answer
    x = 59,525.90

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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.