Home / 90,210.69-135,291.36-50,180.35

Finding the Fourth Proportional to 90,210.69, 135,291.36 and 50,180.35

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Solution

The fourth proportional to 90,210.69, 135,291.36 and 50,180.35 is: 75,256.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,210.69 : 135,291.36 = 50,180.35 : x
  2. Step 2: Convert to fraction form
    90,210.69/135,291.36 = 50,180.35/x
  3. Step 3: Cross multiply
    90,210.69x = 135,291.36 × 50,180.35
  4. Step 4: Simplify right side
    90,210.69x = 6,788,967,796.78
  5. Step 5: Solve for x
    x = 6,788,967,796.78/90,210.69
  6. Step 6: Final answer
    x = 75,256.80

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1.5x scale

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.