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Finding the Fourth Proportional to 72,548.34, 108,817.34 and 19,239.13

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Solution

The fourth proportional to 72,548.34, 108,817.34 and 19,239.13 is: 28,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,548.34 : 108,817.34 = 19,239.13 : x
  2. Step 2: Convert to fraction form
    72,548.34/108,817.34 = 19,239.13/x
  3. Step 3: Cross multiply
    72,548.34x = 108,817.34 × 19,239.13
  4. Step 4: Simplify right side
    72,548.34x = 2,093,550,950.51
  5. Step 5: Solve for x
    x = 2,093,550,950.51/72,548.34
  6. Step 6: Final answer
    x = 28,857.32

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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.