Home / 91,491.51-126,234.29-52,719.80

Finding the Fourth Proportional to 91,491.51, 126,234.29 and 52,719.80

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Solution

The fourth proportional to 91,491.51, 126,234.29 and 52,719.80 is: 72,739.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,491.51 : 126,234.29 = 52,719.80 : x
  2. Step 2: Convert to fraction form
    91,491.51/126,234.29 = 52,719.80/x
  3. Step 3: Cross multiply
    91,491.51x = 126,234.29 × 52,719.80
  4. Step 4: Simplify right side
    91,491.51x = 6,655,045,627.17
  5. Step 5: Solve for x
    x = 6,655,045,627.17/91,491.51
  6. Step 6: Final answer
    x = 72,739.49

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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.