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Finding the Fourth Proportional to 72,954, 109,445.40 and 23,041.80

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Solution

The fourth proportional to 72,954, 109,445.40 and 23,041.80 is: 34,567.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,954 : 109,445.40 = 23,041.80 : x
  2. Step 2: Convert to fraction form
    72,954/109,445.40 = 23,041.80/x
  3. Step 3: Cross multiply
    72,954x = 109,445.40 × 23,041.80
  4. Step 4: Simplify right side
    72,954x = 2,521,819,017.72
  5. Step 5: Solve for x
    x = 2,521,819,017.72/72,954
  6. Step 6: Final answer
    x = 34,567.25

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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.