Home / 74,991.12-103,487.80-43,166.20

Finding the Fourth Proportional to 74,991.12, 103,487.80 and 43,166.20

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Solution

The fourth proportional to 74,991.12, 103,487.80 and 43,166.20 is: 59,569.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,991.12 : 103,487.80 = 43,166.20 : x
  2. Step 2: Convert to fraction form
    74,991.12/103,487.80 = 43,166.20/x
  3. Step 3: Cross multiply
    74,991.12x = 103,487.80 × 43,166.20
  4. Step 4: Simplify right side
    74,991.12x = 4,467,175,072.36
  5. Step 5: Solve for x
    x = 4,467,175,072.36/74,991.12
  6. Step 6: Final answer
    x = 59,569.39

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1.5x scale

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.