Home / 90,873.64-136,315.90-28,544.14

Finding the Fourth Proportional to 90,873.64, 136,315.90 and 28,544.14

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Solution

The fourth proportional to 90,873.64, 136,315.90 and 28,544.14 is: 42,817.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,873.64 : 136,315.90 = 28,544.14 : x
  2. Step 2: Convert to fraction form
    90,873.64/136,315.90 = 28,544.14/x
  3. Step 3: Cross multiply
    90,873.64x = 136,315.90 × 28,544.14
  4. Step 4: Simplify right side
    90,873.64x = 3,891,020,133.83
  5. Step 5: Solve for x
    x = 3,891,020,133.83/90,873.64
  6. Step 6: Final answer
    x = 42,817.92

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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.