Home / 92,841.18-128,121.42-50,399.70

Finding the Fourth Proportional to 92,841.18, 128,121.42 and 50,399.70

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Solution

The fourth proportional to 92,841.18, 128,121.42 and 50,399.70 is: 69,551.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,841.18 : 128,121.42 = 50,399.70 : x
  2. Step 2: Convert to fraction form
    92,841.18/128,121.42 = 50,399.70/x
  3. Step 3: Cross multiply
    92,841.18x = 128,121.42 × 50,399.70
  4. Step 4: Simplify right side
    92,841.18x = 6,457,281,131.57
  5. Step 5: Solve for x
    x = 6,457,281,131.57/92,841.18
  6. Step 6: Final answer
    x = 69,551.91

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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.