Home / 74,918.80-112,378.20-30,522.70

Finding the Fourth Proportional to 74,918.80, 112,378.20 and 30,522.70

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Solution

The fourth proportional to 74,918.80, 112,378.20 and 30,522.70 is: 45,784.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,918.80 : 112,378.20 = 30,522.70 : x
  2. Step 2: Convert to fraction form
    74,918.80/112,378.20 = 30,522.70/x
  3. Step 3: Cross multiply
    74,918.80x = 112,378.20 × 30,522.70
  4. Step 4: Simplify right side
    74,918.80x = 3,430,086,085.14
  5. Step 5: Solve for x
    x = 3,430,086,085.14/74,918.80
  6. Step 6: Final answer
    x = 45,784.05

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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.