Home / 91,717.71-126,516.81-57,672.30

Finding the Fourth Proportional to 91,717.71, 126,516.81 and 57,672.30

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Solution

The fourth proportional to 91,717.71, 126,516.81 and 57,672.30 is: 79,554.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,717.71 : 126,516.81 = 57,672.30 : x
  2. Step 2: Convert to fraction form
    91,717.71/126,516.81 = 57,672.30/x
  3. Step 3: Cross multiply
    91,717.71x = 126,516.81 × 57,672.30
  4. Step 4: Simplify right side
    91,717.71x = 7,296,515,421.36
  5. Step 5: Solve for x
    x = 7,296,515,421.36/91,717.71
  6. Step 6: Final answer
    x = 79,554.05

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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.