Home / 90,023.40-135,051.50-30,865.04

Finding the Fourth Proportional to 90,023.40, 135,051.50 and 30,865.04

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Solution

The fourth proportional to 90,023.40, 135,051.50 and 30,865.04 is: 46,303.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,023.40 : 135,051.50 = 30,865.04 : x
  2. Step 2: Convert to fraction form
    90,023.40/135,051.50 = 30,865.04/x
  3. Step 3: Cross multiply
    90,023.40x = 135,051.50 × 30,865.04
  4. Step 4: Simplify right side
    90,023.40x = 4,168,369,949.56
  5. Step 5: Solve for x
    x = 4,168,369,949.56/90,023.40
  6. Step 6: Final answer
    x = 46,303.18

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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.