Home / 45,373.32-68,036.52-20,392.02

Finding the Fourth Proportional to 45,373.32, 68,036.52 and 20,392.02

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Solution

The fourth proportional to 45,373.32, 68,036.52 and 20,392.02 is: 30,577.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,373.32 : 68,036.52 = 20,392.02 : x
  2. Step 2: Convert to fraction form
    45,373.32/68,036.52 = 20,392.02/x
  3. Step 3: Cross multiply
    45,373.32x = 68,036.52 × 20,392.02
  4. Step 4: Simplify right side
    45,373.32x = 1,387,402,076.57
  5. Step 5: Solve for x
    x = 1,387,402,076.57/45,373.32
  6. Step 6: Final answer
    x = 30,577.49

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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.