Home / 90,636.15-135,968.04-46,238.69

Finding the Fourth Proportional to 90,636.15, 135,968.04 and 46,238.69

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Solution

The fourth proportional to 90,636.15, 135,968.04 and 46,238.69 is: 69,365.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,636.15 : 135,968.04 = 46,238.69 : x
  2. Step 2: Convert to fraction form
    90,636.15/135,968.04 = 46,238.69/x
  3. Step 3: Cross multiply
    90,636.15x = 135,968.04 × 46,238.69
  4. Step 4: Simplify right side
    90,636.15x = 6,286,983,371.63
  5. Step 5: Solve for x
    x = 6,286,983,371.63/90,636.15
  6. Step 6: Final answer
    x = 69,365.08

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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.