Home / 78,309.36-108,066.90-44,317.12

Finding the Fourth Proportional to 78,309.36, 108,066.90 and 44,317.12

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Solution

The fourth proportional to 78,309.36, 108,066.90 and 44,317.12 is: 61,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,309.36 : 108,066.90 = 44,317.12 : x
  2. Step 2: Convert to fraction form
    78,309.36/108,066.90 = 44,317.12/x
  3. Step 3: Cross multiply
    78,309.36x = 108,066.90 × 44,317.12
  4. Step 4: Simplify right side
    78,309.36x = 4,789,213,775.33
  5. Step 5: Solve for x
    x = 4,789,213,775.33/78,309.36
  6. Step 6: Final answer
    x = 61,157.62

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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.