Home / 74,180.46-102,368.61-40,189.62

Finding the Fourth Proportional to 74,180.46, 102,368.61 and 40,189.62

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Solution

The fourth proportional to 74,180.46, 102,368.61 and 40,189.62 is: 55,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,180.46 : 102,368.61 = 40,189.62 : x
  2. Step 2: Convert to fraction form
    74,180.46/102,368.61 = 40,189.62/x
  3. Step 3: Cross multiply
    74,180.46x = 102,368.61 × 40,189.62
  4. Step 4: Simplify right side
    74,180.46x = 4,114,155,535.83
  5. Step 5: Solve for x
    x = 4,114,155,535.83/74,180.46
  6. Step 6: Final answer
    x = 55,461.45

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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.