Home / 69,812.20-104,718.30-36,519.40

Finding the Fourth Proportional to 69,812.20, 104,718.30 and 36,519.40

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Solution

The fourth proportional to 69,812.20, 104,718.30 and 36,519.40 is: 54,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,812.20 : 104,718.30 = 36,519.40 : x
  2. Step 2: Convert to fraction form
    69,812.20/104,718.30 = 36,519.40/x
  3. Step 3: Cross multiply
    69,812.20x = 104,718.30 × 36,519.40
  4. Step 4: Simplify right side
    69,812.20x = 3,824,249,485.02
  5. Step 5: Solve for x
    x = 3,824,249,485.02/69,812.20
  6. Step 6: Final answer
    x = 54,779.10

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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.