Home / 92,981.28-128,315.01-50,539.92

Finding the Fourth Proportional to 92,981.28, 128,315.01 and 50,539.92

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Solution

The fourth proportional to 92,981.28, 128,315.01 and 50,539.92 is: 69,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,981.28 : 128,315.01 = 50,539.92 : x
  2. Step 2: Convert to fraction form
    92,981.28/128,315.01 = 50,539.92/x
  3. Step 3: Cross multiply
    92,981.28x = 128,315.01 × 50,539.92
  4. Step 4: Simplify right side
    92,981.28x = 6,485,030,340.20
  5. Step 5: Solve for x
    x = 6,485,030,340.20/92,981.28
  6. Step 6: Final answer
    x = 69,745.55

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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.