Home / 74,420.64-102,701.43-40,429.26

Finding the Fourth Proportional to 74,420.64, 102,701.43 and 40,429.26

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Solution

The fourth proportional to 74,420.64, 102,701.43 and 40,429.26 is: 55,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,420.64 : 102,701.43 = 40,429.26 : x
  2. Step 2: Convert to fraction form
    74,420.64/102,701.43 = 40,429.26/x
  3. Step 3: Cross multiply
    74,420.64x = 102,701.43 × 40,429.26
  4. Step 4: Simplify right side
    74,420.64x = 4,152,142,815.84
  5. Step 5: Solve for x
    x = 4,152,142,815.84/74,420.64
  6. Step 6: Final answer
    x = 55,792.89

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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.