Home / 40,779.32-56,199.26-31,812.60

Finding the Fourth Proportional to 40,779.32, 56,199.26 and 31,812.60

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Solution

The fourth proportional to 40,779.32, 56,199.26 and 31,812.60 is: 43,841.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,779.32 : 56,199.26 = 31,812.60 : x
  2. Step 2: Convert to fraction form
    40,779.32/56,199.26 = 31,812.60/x
  3. Step 3: Cross multiply
    40,779.32x = 56,199.26 × 31,812.60
  4. Step 4: Simplify right side
    40,779.32x = 1,787,844,578.68
  5. Step 5: Solve for x
    x = 1,787,844,578.68/40,779.32
  6. Step 6: Final answer
    x = 43,841.94

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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.