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Finding the Fourth Proportional to 72,045.06, 108,073.06 and 19,453.80

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Solution

The fourth proportional to 72,045.06, 108,073.06 and 19,453.80 is: 29,182.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,045.06 : 108,073.06 = 19,453.80 : x
  2. Step 2: Convert to fraction form
    72,045.06/108,073.06 = 19,453.80/x
  3. Step 3: Cross multiply
    72,045.06x = 108,073.06 × 19,453.80
  4. Step 4: Simplify right side
    72,045.06x = 2,102,431,694.63
  5. Step 5: Solve for x
    x = 2,102,431,694.63/72,045.06
  6. Step 6: Final answer
    x = 29,182.18

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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.