Home / 79,550.47-109,779.63-43,742.80

Finding the Fourth Proportional to 79,550.47, 109,779.63 and 43,742.80

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Solution

The fourth proportional to 79,550.47, 109,779.63 and 43,742.80 is: 60,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,550.47 : 109,779.63 = 43,742.80 : x
  2. Step 2: Convert to fraction form
    79,550.47/109,779.63 = 43,742.80/x
  3. Step 3: Cross multiply
    79,550.47x = 109,779.63 × 43,742.80
  4. Step 4: Simplify right side
    79,550.47x = 4,802,068,399.16
  5. Step 5: Solve for x
    x = 4,802,068,399.16/79,550.47
  6. Step 6: Final answer
    x = 60,365.05

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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.