Home / 75,420.02-104,080.50-41,429.30

Finding the Fourth Proportional to 75,420.02, 104,080.50 and 41,429.30

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Solution

The fourth proportional to 75,420.02, 104,080.50 and 41,429.30 is: 57,172.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,420.02 : 104,080.50 = 41,429.30 : x
  2. Step 2: Convert to fraction form
    75,420.02/104,080.50 = 41,429.30/x
  3. Step 3: Cross multiply
    75,420.02x = 104,080.50 × 41,429.30
  4. Step 4: Simplify right side
    75,420.02x = 4,311,982,258.65
  5. Step 5: Solve for x
    x = 4,311,982,258.65/75,420.02
  6. Step 6: Final answer
    x = 57,172.91

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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.