Home / 91,439.47-126,186.66-51,153.91

Finding the Fourth Proportional to 91,439.47, 126,186.66 and 51,153.91

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Solution

The fourth proportional to 91,439.47, 126,186.66 and 51,153.91 is: 70,592.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,439.47 : 126,186.66 = 51,153.91 : x
  2. Step 2: Convert to fraction form
    91,439.47/126,186.66 = 51,153.91/x
  3. Step 3: Cross multiply
    91,439.47x = 126,186.66 × 51,153.91
  4. Step 4: Simplify right side
    91,439.47x = 6,454,940,162.14
  5. Step 5: Solve for x
    x = 6,454,940,162.14/91,439.47
  6. Step 6: Final answer
    x = 70,592.49

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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.