Home / 92,981.11-128,314.11-50,539.54

Finding the Fourth Proportional to 92,981.11, 128,314.11 and 50,539.54

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Solution

The fourth proportional to 92,981.11, 128,314.11 and 50,539.54 is: 69,744.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,981.11 : 128,314.11 = 50,539.54 : x
  2. Step 2: Convert to fraction form
    92,981.11/128,314.11 = 50,539.54/x
  3. Step 3: Cross multiply
    92,981.11x = 128,314.11 × 50,539.54
  4. Step 4: Simplify right side
    92,981.11x = 6,484,936,094.91
  5. Step 5: Solve for x
    x = 6,484,936,094.91/92,981.11
  6. Step 6: Final answer
    x = 69,744.66

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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.