Home / 55,298.14-76,311.20-30,147.64

Finding the Fourth Proportional to 55,298.14, 76,311.20 and 30,147.64

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Solution

The fourth proportional to 55,298.14, 76,311.20 and 30,147.64 is: 41,603.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,298.14 : 76,311.20 = 30,147.64 : x
  2. Step 2: Convert to fraction form
    55,298.14/76,311.20 = 30,147.64/x
  3. Step 3: Cross multiply
    55,298.14x = 76,311.20 × 30,147.64
  4. Step 4: Simplify right side
    55,298.14x = 2,300,602,585.57
  5. Step 5: Solve for x
    x = 2,300,602,585.57/55,298.14
  6. Step 6: Final answer
    x = 41,603.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.