Home / 90,913.52-125,420.04-53,171.12

Finding the Fourth Proportional to 90,913.52, 125,420.04 and 53,171.12

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Solution

The fourth proportional to 90,913.52, 125,420.04 and 53,171.12 is: 73,352.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,913.52 : 125,420.04 = 53,171.12 : x
  2. Step 2: Convert to fraction form
    90,913.52/125,420.04 = 53,171.12/x
  3. Step 3: Cross multiply
    90,913.52x = 125,420.04 × 53,171.12
  4. Step 4: Simplify right side
    90,913.52x = 6,668,723,997.24
  5. Step 5: Solve for x
    x = 6,668,723,997.24/90,913.52
  6. Step 6: Final answer
    x = 73,352.39

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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.