Home / 90,914.02-125,420.73-53,171.62

Finding the Fourth Proportional to 90,914.02, 125,420.73 and 53,171.62

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Solution

The fourth proportional to 90,914.02, 125,420.73 and 53,171.62 is: 73,353.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,914.02 : 125,420.73 = 53,171.62 : x
  2. Step 2: Convert to fraction form
    90,914.02/125,420.73 = 53,171.62/x
  3. Step 3: Cross multiply
    90,914.02x = 125,420.73 × 53,171.62
  4. Step 4: Simplify right side
    90,914.02x = 6,668,823,395.68
  5. Step 5: Solve for x
    x = 6,668,823,395.68/90,914.02
  6. Step 6: Final answer
    x = 73,353.08

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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.