Home / 42,771.36-64,160.63-11,181.36

Finding the Fourth Proportional to 42,771.36, 64,160.63 and 11,181.36

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Solution

The fourth proportional to 42,771.36, 64,160.63 and 11,181.36 is: 16,772.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,771.36 : 64,160.63 = 11,181.36 : x
  2. Step 2: Convert to fraction form
    42,771.36/64,160.63 = 11,181.36/x
  3. Step 3: Cross multiply
    42,771.36x = 64,160.63 × 11,181.36
  4. Step 4: Simplify right side
    42,771.36x = 717,403,101.86
  5. Step 5: Solve for x
    x = 717,403,101.86/42,771.36
  6. Step 6: Final answer
    x = 16,772.98

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1.5x scale

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.