Home / 91,428.89-126,121.06-53,184.14

Finding the Fourth Proportional to 91,428.89, 126,121.06 and 53,184.14

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Solution

The fourth proportional to 91,428.89, 126,121.06 and 53,184.14 is: 73,364.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,428.89 : 126,121.06 = 53,184.14 : x
  2. Step 2: Convert to fraction form
    91,428.89/126,121.06 = 53,184.14/x
  3. Step 3: Cross multiply
    91,428.89x = 126,121.06 × 53,184.14
  4. Step 4: Simplify right side
    91,428.89x = 6,707,639,481.38
  5. Step 5: Solve for x
    x = 6,707,639,481.38/91,428.89
  6. Step 6: Final answer
    x = 73,364.55

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1.5x scale

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.