Home / 90,215.07-135,216.50-36,874.14

Finding the Fourth Proportional to 90,215.07, 135,216.50 and 36,874.14

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Solution

The fourth proportional to 90,215.07, 135,216.50 and 36,874.14 is: 55,267.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,215.07 : 135,216.50 = 36,874.14 : x
  2. Step 2: Convert to fraction form
    90,215.07/135,216.50 = 36,874.14/x
  3. Step 3: Cross multiply
    90,215.07x = 135,216.50 × 36,874.14
  4. Step 4: Simplify right side
    90,215.07x = 4,985,991,966.94
  5. Step 5: Solve for x
    x = 4,985,991,966.94/90,215.07
  6. Step 6: Final answer
    x = 55,267.84

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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.