Home / 45,530.64-68,304.60-20,570.40

Finding the Fourth Proportional to 45,530.64, 68,304.60 and 20,570.40

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Solution

The fourth proportional to 45,530.64, 68,304.60 and 20,570.40 is: 30,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,530.64 : 68,304.60 = 20,570.40 : x
  2. Step 2: Convert to fraction form
    45,530.64/68,304.60 = 20,570.40/x
  3. Step 3: Cross multiply
    45,530.64x = 68,304.60 × 20,570.40
  4. Step 4: Simplify right side
    45,530.64x = 1,405,052,943.84
  5. Step 5: Solve for x
    x = 1,405,052,943.84/45,530.64
  6. Step 6: Final answer
    x = 30,859.50

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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.