Home / 42,266.40-63,411.60-21,181.02

Finding the Fourth Proportional to 42,266.40, 63,411.60 and 21,181.02

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Solution

The fourth proportional to 42,266.40, 63,411.60 and 21,181.02 is: 31,777.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,266.40 : 63,411.60 = 21,181.02 : x
  2. Step 2: Convert to fraction form
    42,266.40/63,411.60 = 21,181.02/x
  3. Step 3: Cross multiply
    42,266.40x = 63,411.60 × 21,181.02
  4. Step 4: Simplify right side
    42,266.40x = 1,343,122,367.83
  5. Step 5: Solve for x
    x = 1,343,122,367.83/42,266.40
  6. Step 6: Final answer
    x = 31,777.54

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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.