Home / 74,203.03-102,400.55-40,211.56

Finding the Fourth Proportional to 74,203.03, 102,400.55 and 40,211.56

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Solution

The fourth proportional to 74,203.03, 102,400.55 and 40,211.56 is: 55,492.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,203.03 : 102,400.55 = 40,211.56 : x
  2. Step 2: Convert to fraction form
    74,203.03/102,400.55 = 40,211.56/x
  3. Step 3: Cross multiply
    74,203.03x = 102,400.55 × 40,211.56
  4. Step 4: Simplify right side
    74,203.03x = 4,117,685,860.36
  5. Step 5: Solve for x
    x = 4,117,685,860.36/74,203.03
  6. Step 6: Final answer
    x = 55,492.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.