Home / 74,199.60-102,395.25-40,209.03

Finding the Fourth Proportional to 74,199.60, 102,395.25 and 40,209.03

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Solution

The fourth proportional to 74,199.60, 102,395.25 and 40,209.03 is: 55,488.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,199.60 : 102,395.25 = 40,209.03 : x
  2. Step 2: Convert to fraction form
    74,199.60/102,395.25 = 40,209.03/x
  3. Step 3: Cross multiply
    74,199.60x = 102,395.25 × 40,209.03
  4. Step 4: Simplify right side
    74,199.60x = 4,117,213,679.11
  5. Step 5: Solve for x
    x = 4,117,213,679.11/74,199.60
  6. Step 6: Final answer
    x = 55,488.35

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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.