Home / 91,440.65-126,183.02-51,146.64

Finding the Fourth Proportional to 91,440.65, 126,183.02 and 51,146.64

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Solution

The fourth proportional to 91,440.65, 126,183.02 and 51,146.64 is: 70,579.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,440.65 : 126,183.02 = 51,146.64 : x
  2. Step 2: Convert to fraction form
    91,440.65/126,183.02 = 51,146.64/x
  3. Step 3: Cross multiply
    91,440.65x = 126,183.02 × 51,146.64
  4. Step 4: Simplify right side
    91,440.65x = 6,453,837,242.32
  5. Step 5: Solve for x
    x = 6,453,837,242.32/91,440.65
  6. Step 6: Final answer
    x = 70,579.52

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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.