Home / 74,434.50-102,719.61-40,902.66

Finding the Fourth Proportional to 74,434.50, 102,719.61 and 40,902.66

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Solution

The fourth proportional to 74,434.50, 102,719.61 and 40,902.66 is: 56,445.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,434.50 : 102,719.61 = 40,902.66 : x
  2. Step 2: Convert to fraction form
    74,434.50/102,719.61 = 40,902.66/x
  3. Step 3: Cross multiply
    74,434.50x = 102,719.61 × 40,902.66
  4. Step 4: Simplify right side
    74,434.50x = 4,201,505,283.16
  5. Step 5: Solve for x
    x = 4,201,505,283.16/74,434.50
  6. Step 6: Final answer
    x = 56,445.67

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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.