Home / 91,913.92-137,784.69-35,790.04

Finding the Fourth Proportional to 91,913.92, 137,784.69 and 35,790.04

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Solution

The fourth proportional to 91,913.92, 137,784.69 and 35,790.04 is: 53,651.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,913.92 : 137,784.69 = 35,790.04 : x
  2. Step 2: Convert to fraction form
    91,913.92/137,784.69 = 35,790.04/x
  3. Step 3: Cross multiply
    91,913.92x = 137,784.69 × 35,790.04
  4. Step 4: Simplify right side
    91,913.92x = 4,931,319,566.49
  5. Step 5: Solve for x
    x = 4,931,319,566.49/91,913.92
  6. Step 6: Final answer
    x = 53,651.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.