Home / 90,309.46-135,437.18-56,626.64

Finding the Fourth Proportional to 90,309.46, 135,437.18 and 56,626.64

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Solution

The fourth proportional to 90,309.46, 135,437.18 and 56,626.64 is: 84,923.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,309.46 : 135,437.18 = 56,626.64 : x
  2. Step 2: Convert to fraction form
    90,309.46/135,437.18 = 56,626.64/x
  3. Step 3: Cross multiply
    90,309.46x = 135,437.18 × 56,626.64
  4. Step 4: Simplify right side
    90,309.46x = 7,669,351,615.72
  5. Step 5: Solve for x
    x = 7,669,351,615.72/90,309.46
  6. Step 6: Final answer
    x = 84,923.02

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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.