Home / 74,742.60-103,144.23-40,751.67

Finding the Fourth Proportional to 74,742.60, 103,144.23 and 40,751.67

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Solution

The fourth proportional to 74,742.60, 103,144.23 and 40,751.67 is: 56,237.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,742.60 : 103,144.23 = 40,751.67 : x
  2. Step 2: Convert to fraction form
    74,742.60/103,144.23 = 40,751.67/x
  3. Step 3: Cross multiply
    74,742.60x = 103,144.23 × 40,751.67
  4. Step 4: Simplify right side
    74,742.60x = 4,203,299,623.36
  5. Step 5: Solve for x
    x = 4,203,299,623.36/74,742.60
  6. Step 6: Final answer
    x = 56,237.00

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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.