Home / 45,735.88-68,603.02-12,455.40

Finding the Fourth Proportional to 45,735.88, 68,603.02 and 12,455.40

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Solution

The fourth proportional to 45,735.88, 68,603.02 and 12,455.40 is: 18,682.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,735.88 : 68,603.02 = 12,455.40 : x
  2. Step 2: Convert to fraction form
    45,735.88/68,603.02 = 12,455.40/x
  3. Step 3: Cross multiply
    45,735.88x = 68,603.02 × 12,455.40
  4. Step 4: Simplify right side
    45,735.88x = 854,478,055.31
  5. Step 5: Solve for x
    x = 854,478,055.31/45,735.88
  6. Step 6: Final answer
    x = 18,682.88

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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.