Home / 91,344.66-126,039.51-51,045.54

Finding the Fourth Proportional to 91,344.66, 126,039.51 and 51,045.54

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Solution

The fourth proportional to 91,344.66, 126,039.51 and 51,045.54 is: 70,433.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,344.66 : 126,039.51 = 51,045.54 : x
  2. Step 2: Convert to fraction form
    91,344.66/126,039.51 = 51,045.54/x
  3. Step 3: Cross multiply
    91,344.66x = 126,039.51 × 51,045.54
  4. Step 4: Simplify right side
    91,344.66x = 6,433,754,849.29
  5. Step 5: Solve for x
    x = 6,433,754,849.29/91,344.66
  6. Step 6: Final answer
    x = 70,433.84

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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.