Home / 42,360.41-63,541.08-12,778.51

Finding the Fourth Proportional to 42,360.41, 63,541.08 and 12,778.51

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Solution

The fourth proportional to 42,360.41, 63,541.08 and 12,778.51 is: 19,167.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,360.41 : 63,541.08 = 12,778.51 : x
  2. Step 2: Convert to fraction form
    42,360.41/63,541.08 = 12,778.51/x
  3. Step 3: Cross multiply
    42,360.41x = 63,541.08 × 12,778.51
  4. Step 4: Simplify right side
    42,360.41x = 811,960,000.44
  5. Step 5: Solve for x
    x = 811,960,000.44/42,360.41
  6. Step 6: Final answer
    x = 19,167.90

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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.