Home / 74,189.72-102,387.36-45,911.84

Finding the Fourth Proportional to 74,189.72, 102,387.36 and 45,911.84

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Solution

The fourth proportional to 74,189.72, 102,387.36 and 45,911.84 is: 63,361.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,189.72 : 102,387.36 = 45,911.84 : x
  2. Step 2: Convert to fraction form
    74,189.72/102,387.36 = 45,911.84/x
  3. Step 3: Cross multiply
    74,189.72x = 102,387.36 × 45,911.84
  4. Step 4: Simplify right side
    74,189.72x = 4,700,792,090.34
  5. Step 5: Solve for x
    x = 4,700,792,090.34/74,189.72
  6. Step 6: Final answer
    x = 63,361.77

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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.