Home / 90,528.66-135,749.10-53,100.96

Finding the Fourth Proportional to 90,528.66, 135,749.10 and 53,100.96

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Solution

The fourth proportional to 90,528.66, 135,749.10 and 53,100.96 is: 79,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,528.66 : 135,749.10 = 53,100.96 : x
  2. Step 2: Convert to fraction form
    90,528.66/135,749.10 = 53,100.96/x
  3. Step 3: Cross multiply
    90,528.66x = 135,749.10 × 53,100.96
  4. Step 4: Simplify right side
    90,528.66x = 7,208,407,529.14
  5. Step 5: Solve for x
    x = 7,208,407,529.14/90,528.66
  6. Step 6: Final answer
    x = 79,625.70

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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.