Home / 90,890.35-125,450.77-52,643.73

Finding the Fourth Proportional to 90,890.35, 125,450.77 and 52,643.73

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Solution

The fourth proportional to 90,890.35, 125,450.77 and 52,643.73 is: 72,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,890.35 : 125,450.77 = 52,643.73 : x
  2. Step 2: Convert to fraction form
    90,890.35/125,450.77 = 52,643.73/x
  3. Step 3: Cross multiply
    90,890.35x = 125,450.77 × 52,643.73
  4. Step 4: Simplify right side
    90,890.35x = 6,604,196,464.17
  5. Step 5: Solve for x
    x = 6,604,196,464.17/90,890.35
  6. Step 6: Final answer
    x = 72,661.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.