Home / 90,054.77-135,173.55-45,108.33

Finding the Fourth Proportional to 90,054.77, 135,173.55 and 45,108.33

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Solution

The fourth proportional to 90,054.77, 135,173.55 and 45,108.33 is: 67,708.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,054.77 : 135,173.55 = 45,108.33 : x
  2. Step 2: Convert to fraction form
    90,054.77/135,173.55 = 45,108.33/x
  3. Step 3: Cross multiply
    90,054.77x = 135,173.55 × 45,108.33
  4. Step 4: Simplify right side
    90,054.77x = 6,097,453,100.67
  5. Step 5: Solve for x
    x = 6,097,453,100.67/90,054.77
  6. Step 6: Final answer
    x = 67,708.28

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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.