Home / 61,225.20-91,805.40-21,783.60

Finding the Fourth Proportional to 61,225.20, 91,805.40 and 21,783.60

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Solution

The fourth proportional to 61,225.20, 91,805.40 and 21,783.60 is: 32,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,225.20 : 91,805.40 = 21,783.60 : x
  2. Step 2: Convert to fraction form
    61,225.20/91,805.40 = 21,783.60/x
  3. Step 3: Cross multiply
    61,225.20x = 91,805.40 × 21,783.60
  4. Step 4: Simplify right side
    61,225.20x = 1,999,852,111.44
  5. Step 5: Solve for x
    x = 1,999,852,111.44/61,225.20
  6. Step 6: Final answer
    x = 32,663.87

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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.