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Finding the Fourth Proportional to 69,000.40, 103,500.60 and 57,846.70

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Solution

The fourth proportional to 69,000.40, 103,500.60 and 57,846.70 is: 86,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,000.40 : 103,500.60 = 57,846.70 : x
  2. Step 2: Convert to fraction form
    69,000.40/103,500.60 = 57,846.70/x
  3. Step 3: Cross multiply
    69,000.40x = 103,500.60 × 57,846.70
  4. Step 4: Simplify right side
    69,000.40x = 5,987,168,158.02
  5. Step 5: Solve for x
    x = 5,987,168,158.02/69,000.40
  6. Step 6: Final answer
    x = 86,770.05

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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.