Home / 91,439.60-126,186.83-51,154.03

Finding the Fourth Proportional to 91,439.60, 126,186.83 and 51,154.03

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Solution

The fourth proportional to 91,439.60, 126,186.83 and 51,154.03 is: 70,592.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,439.60 : 126,186.83 = 51,154.03 : x
  2. Step 2: Convert to fraction form
    91,439.60/126,186.83 = 51,154.03/x
  3. Step 3: Cross multiply
    91,439.60x = 126,186.83 × 51,154.03
  4. Step 4: Simplify right side
    91,439.60x = 6,454,964,631.65
  5. Step 5: Solve for x
    x = 6,454,964,631.65/91,439.60
  6. Step 6: Final answer
    x = 70,592.66

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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.