Home / 45,783.40-68,559.90-30,116.20

Finding the Fourth Proportional to 45,783.40, 68,559.90 and 30,116.20

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Solution

The fourth proportional to 45,783.40, 68,559.90 and 30,116.20 is: 45,098.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,783.40 : 68,559.90 = 30,116.20 : x
  2. Step 2: Convert to fraction form
    45,783.40/68,559.90 = 30,116.20/x
  3. Step 3: Cross multiply
    45,783.40x = 68,559.90 × 30,116.20
  4. Step 4: Simplify right side
    45,783.40x = 2,064,763,660.38
  5. Step 5: Solve for x
    x = 2,064,763,660.38/45,783.40
  6. Step 6: Final answer
    x = 45,098.52

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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.