Home / 90,252.74-135,503.34-45,909.50

Finding the Fourth Proportional to 90,252.74, 135,503.34 and 45,909.50

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Solution

The fourth proportional to 90,252.74, 135,503.34 and 45,909.50 is: 68,927.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,252.74 : 135,503.34 = 45,909.50 : x
  2. Step 2: Convert to fraction form
    90,252.74/135,503.34 = 45,909.50/x
  3. Step 3: Cross multiply
    90,252.74x = 135,503.34 × 45,909.50
  4. Step 4: Simplify right side
    90,252.74x = 6,220,890,587.73
  5. Step 5: Solve for x
    x = 6,220,890,587.73/90,252.74
  6. Step 6: Final answer
    x = 68,927.44

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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.