Home / 90,068.14-135,054.42-45,040.24

Finding the Fourth Proportional to 90,068.14, 135,054.42 and 45,040.24

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Solution

The fourth proportional to 90,068.14, 135,054.42 and 45,040.24 is: 67,536.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,068.14 : 135,054.42 = 45,040.24 : x
  2. Step 2: Convert to fraction form
    90,068.14/135,054.42 = 45,040.24/x
  3. Step 3: Cross multiply
    90,068.14x = 135,054.42 × 45,040.24
  4. Step 4: Simplify right side
    90,068.14x = 6,082,883,489.86
  5. Step 5: Solve for x
    x = 6,082,883,489.86/90,068.14
  6. Step 6: Final answer
    x = 67,536.46

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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.