Home / 55,208.20-82,812.30-42,086.20

Finding the Fourth Proportional to 55,208.20, 82,812.30 and 42,086.20

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Solution

The fourth proportional to 55,208.20, 82,812.30 and 42,086.20 is: 63,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,208.20 : 82,812.30 = 42,086.20 : x
  2. Step 2: Convert to fraction form
    55,208.20/82,812.30 = 42,086.20/x
  3. Step 3: Cross multiply
    55,208.20x = 82,812.30 × 42,086.20
  4. Step 4: Simplify right side
    55,208.20x = 3,485,255,020.26
  5. Step 5: Solve for x
    x = 3,485,255,020.26/55,208.20
  6. Step 6: Final answer
    x = 63,129.30

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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.