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Finding the Fourth Proportional to 72,216.68, 108,378.22 and 34,266.08

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Solution

The fourth proportional to 72,216.68, 108,378.22 and 34,266.08 is: 51,424.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,216.68 : 108,378.22 = 34,266.08 : x
  2. Step 2: Convert to fraction form
    72,216.68/108,378.22 = 34,266.08/x
  3. Step 3: Cross multiply
    72,216.68x = 108,378.22 × 34,266.08
  4. Step 4: Simplify right side
    72,216.68x = 3,713,696,756.78
  5. Step 5: Solve for x
    x = 3,713,696,756.78/72,216.68
  6. Step 6: Final answer
    x = 51,424.36

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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.