Home / 92,945.18-128,264.11-50,503.72

Finding the Fourth Proportional to 92,945.18, 128,264.11 and 50,503.72

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Solution

The fourth proportional to 92,945.18, 128,264.11 and 50,503.72 is: 69,694.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,945.18 : 128,264.11 = 50,503.72 : x
  2. Step 2: Convert to fraction form
    92,945.18/128,264.11 = 50,503.72/x
  3. Step 3: Cross multiply
    92,945.18x = 128,264.11 × 50,503.72
  4. Step 4: Simplify right side
    92,945.18x = 6,477,813,803.65
  5. Step 5: Solve for x
    x = 6,477,813,803.65/92,945.18
  6. Step 6: Final answer
    x = 69,694.99

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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.