Home / 90,775.14-136,162.77-28,450.50

Finding the Fourth Proportional to 90,775.14, 136,162.77 and 28,450.50

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Solution

The fourth proportional to 90,775.14, 136,162.77 and 28,450.50 is: 42,675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,775.14 : 136,162.77 = 28,450.50 : x
  2. Step 2: Convert to fraction form
    90,775.14/136,162.77 = 28,450.50/x
  3. Step 3: Cross multiply
    90,775.14x = 136,162.77 × 28,450.50
  4. Step 4: Simplify right side
    90,775.14x = 3,873,898,887.89
  5. Step 5: Solve for x
    x = 3,873,898,887.89/90,775.14
  6. Step 6: Final answer
    x = 42,675.77

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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.