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Finding the Fourth Proportional to 69,221.55, 103,686.52 and 56,099.55

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Solution

The fourth proportional to 69,221.55, 103,686.52 and 56,099.55 is: 84,031.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,221.55 : 103,686.52 = 56,099.55 : x
  2. Step 2: Convert to fraction form
    69,221.55/103,686.52 = 56,099.55/x
  3. Step 3: Cross multiply
    69,221.55x = 103,686.52 × 56,099.55
  4. Step 4: Simplify right side
    69,221.55x = 5,816,767,113.07
  5. Step 5: Solve for x
    x = 5,816,767,113.07/69,221.55
  6. Step 6: Final answer
    x = 84,031.16

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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.