Home / 53,611.40-80,416.60-13,630.47

Finding the Fourth Proportional to 53,611.40, 80,416.60 and 13,630.47

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Solution

The fourth proportional to 53,611.40, 80,416.60 and 13,630.47 is: 20,445.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,611.40 : 80,416.60 = 13,630.47 : x
  2. Step 2: Convert to fraction form
    53,611.40/80,416.60 = 13,630.47/x
  3. Step 3: Cross multiply
    53,611.40x = 80,416.60 × 13,630.47
  4. Step 4: Simplify right side
    53,611.40x = 1,096,116,019.73
  5. Step 5: Solve for x
    x = 1,096,116,019.73/53,611.40
  6. Step 6: Final answer
    x = 20,445.58

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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.