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Finding the Fourth Proportional to 69,017.36, 103,484.22 and 45,019.59

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Solution

The fourth proportional to 69,017.36, 103,484.22 and 45,019.59 is: 67,502.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,017.36 : 103,484.22 = 45,019.59 : x
  2. Step 2: Convert to fraction form
    69,017.36/103,484.22 = 45,019.59/x
  3. Step 3: Cross multiply
    69,017.36x = 103,484.22 × 45,019.59
  4. Step 4: Simplify right side
    69,017.36x = 4,658,817,155.87
  5. Step 5: Solve for x
    x = 4,658,817,155.87/69,017.36
  6. Step 6: Final answer
    x = 67,502.11

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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.