Home / 90,790.14-136,185.22-28,465.50

Finding the Fourth Proportional to 90,790.14, 136,185.22 and 28,465.50

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Solution

The fourth proportional to 90,790.14, 136,185.22 and 28,465.50 is: 42,698.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,790.14 : 136,185.22 = 28,465.50 : x
  2. Step 2: Convert to fraction form
    90,790.14/136,185.22 = 28,465.50/x
  3. Step 3: Cross multiply
    90,790.14x = 136,185.22 × 28,465.50
  4. Step 4: Simplify right side
    90,790.14x = 3,876,580,379.91
  5. Step 5: Solve for x
    x = 3,876,580,379.91/90,790.14
  6. Step 6: Final answer
    x = 42,698.25

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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.