Home / 45,915.48-68,899.80-19,259.10

Finding the Fourth Proportional to 45,915.48, 68,899.80 and 19,259.10

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Solution

The fourth proportional to 45,915.48, 68,899.80 and 19,259.10 is: 28,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,915.48 : 68,899.80 = 19,259.10 : x
  2. Step 2: Convert to fraction form
    45,915.48/68,899.80 = 19,259.10/x
  3. Step 3: Cross multiply
    45,915.48x = 68,899.80 × 19,259.10
  4. Step 4: Simplify right side
    45,915.48x = 1,326,948,138.18
  5. Step 5: Solve for x
    x = 1,326,948,138.18/45,915.48
  6. Step 6: Final answer
    x = 28,899.80

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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.