Home / 51,636.64-71,245.20-30,416.80

Finding the Fourth Proportional to 51,636.64, 71,245.20 and 30,416.80

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Solution

The fourth proportional to 51,636.64, 71,245.20 and 30,416.80 is: 41,967.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,636.64 : 71,245.20 = 30,416.80 : x
  2. Step 2: Convert to fraction form
    51,636.64/71,245.20 = 30,416.80/x
  3. Step 3: Cross multiply
    51,636.64x = 71,245.20 × 30,416.80
  4. Step 4: Simplify right side
    51,636.64x = 2,167,050,999.36
  5. Step 5: Solve for x
    x = 2,167,050,999.36/51,636.64
  6. Step 6: Final answer
    x = 41,967.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.