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Finding the Fourth Proportional to 69,000.30, 103,500.45 and 67,056.30

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Solution

The fourth proportional to 69,000.30, 103,500.45 and 67,056.30 is: 100,584.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,000.30 : 103,500.45 = 67,056.30 : x
  2. Step 2: Convert to fraction form
    69,000.30/103,500.45 = 67,056.30/x
  3. Step 3: Cross multiply
    69,000.30x = 103,500.45 × 67,056.30
  4. Step 4: Simplify right side
    69,000.30x = 6,940,357,225.34
  5. Step 5: Solve for x
    x = 6,940,357,225.34/69,000.30
  6. Step 6: Final answer
    x = 100,584.45

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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.