Home / 35,449.12-53,178.72-12,079.36

Finding the Fourth Proportional to 35,449.12, 53,178.72 and 12,079.36

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Solution

The fourth proportional to 35,449.12, 53,178.72 and 12,079.36 is: 18,120.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,449.12 : 53,178.72 = 12,079.36 : x
  2. Step 2: Convert to fraction form
    35,449.12/53,178.72 = 12,079.36/x
  3. Step 3: Cross multiply
    35,449.12x = 53,178.72 × 12,079.36
  4. Step 4: Simplify right side
    35,449.12x = 642,364,903.22
  5. Step 5: Solve for x
    x = 642,364,903.22/35,449.12
  6. Step 6: Final answer
    x = 18,120.76

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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.