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Finding the Fourth Proportional to 74,700, 112,069.20 and 25,452

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Solution

The fourth proportional to 74,700, 112,069.20 and 25,452 is: 38,184.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,700 : 112,069.20 = 25,452 : x
  2. Step 2: Convert to fraction form
    74,700/112,069.20 = 25,452/x
  3. Step 3: Cross multiply
    74,700x = 112,069.20 × 25,452
  4. Step 4: Simplify right side
    74,700x = 2,852,385,278.40
  5. Step 5: Solve for x
    x = 2,852,385,278.40/74,700
  6. Step 6: Final answer
    x = 38,184.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.