Home / 35,448.40-53,179.80-12,077.20

Finding the Fourth Proportional to 35,448.40, 53,179.80 and 12,077.20

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Solution

The fourth proportional to 35,448.40, 53,179.80 and 12,077.20 is: 18,118.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,448.40 : 53,179.80 = 12,077.20 : x
  2. Step 2: Convert to fraction form
    35,448.40/53,179.80 = 12,077.20/x
  3. Step 3: Cross multiply
    35,448.40x = 53,179.80 × 12,077.20
  4. Step 4: Simplify right side
    35,448.40x = 642,263,080.56
  5. Step 5: Solve for x
    x = 642,263,080.56/35,448.40
  6. Step 6: Final answer
    x = 18,118.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.