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Finding the Fourth Proportional to 69,070.05, 103,605.03 and 45,691.02

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Solution

The fourth proportional to 69,070.05, 103,605.03 and 45,691.02 is: 68,536.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,070.05 : 103,605.03 = 45,691.02 : x
  2. Step 2: Convert to fraction form
    69,070.05/103,605.03 = 45,691.02/x
  3. Step 3: Cross multiply
    69,070.05x = 103,605.03 × 45,691.02
  4. Step 4: Simplify right side
    69,070.05x = 4,733,819,497.83
  5. Step 5: Solve for x
    x = 4,733,819,497.83/69,070.05
  6. Step 6: Final answer
    x = 68,536.50

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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.