Home / 45,780.40-68,555.40-30,113.20

Finding the Fourth Proportional to 45,780.40, 68,555.40 and 30,113.20

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Solution

The fourth proportional to 45,780.40, 68,555.40 and 30,113.20 is: 45,094.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,780.40 : 68,555.40 = 30,113.20 : x
  2. Step 2: Convert to fraction form
    45,780.40/68,555.40 = 30,113.20/x
  3. Step 3: Cross multiply
    45,780.40x = 68,555.40 × 30,113.20
  4. Step 4: Simplify right side
    45,780.40x = 2,064,422,471.28
  5. Step 5: Solve for x
    x = 2,064,422,471.28/45,780.40
  6. Step 6: Final answer
    x = 45,094.02

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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.