Home / 90,311.13-135,554.18-43,596.81

Finding the Fourth Proportional to 90,311.13, 135,554.18 and 43,596.81

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Solution

The fourth proportional to 90,311.13, 135,554.18 and 43,596.81 is: 65,437.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,311.13 : 135,554.18 = 43,596.81 : x
  2. Step 2: Convert to fraction form
    90,311.13/135,554.18 = 43,596.81/x
  3. Step 3: Cross multiply
    90,311.13x = 135,554.18 × 43,596.81
  4. Step 4: Simplify right side
    90,311.13x = 5,909,729,830.17
  5. Step 5: Solve for x
    x = 5,909,729,830.17/90,311.13
  6. Step 6: Final answer
    x = 65,437.45

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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.