Home / 45,137.15-67,655.30-39,884.70

Finding the Fourth Proportional to 45,137.15, 67,655.30 and 39,884.70

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Solution

The fourth proportional to 45,137.15, 67,655.30 and 39,884.70 is: 59,782.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,137.15 : 67,655.30 = 39,884.70 : x
  2. Step 2: Convert to fraction form
    45,137.15/67,655.30 = 39,884.70/x
  3. Step 3: Cross multiply
    45,137.15x = 67,655.30 × 39,884.70
  4. Step 4: Simplify right side
    45,137.15x = 2,698,411,343.91
  5. Step 5: Solve for x
    x = 2,698,411,343.91/45,137.15
  6. Step 6: Final answer
    x = 59,782.49

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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.