Home / 69,320.40-104,006.20-66,760.40

Finding the Fourth Proportional to 69,320.40, 104,006.20 and 66,760.40

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Solution

The fourth proportional to 69,320.40, 104,006.20 and 66,760.40 is: 100,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,320.40 : 104,006.20 = 66,760.40 : x
  2. Step 2: Convert to fraction form
    69,320.40/104,006.20 = 66,760.40/x
  3. Step 3: Cross multiply
    69,320.40x = 104,006.20 × 66,760.40
  4. Step 4: Simplify right side
    69,320.40x = 6,943,495,514.48
  5. Step 5: Solve for x
    x = 6,943,495,514.48/69,320.40
  6. Step 6: Final answer
    x = 100,165.25

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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.