Home / 78,289.27-108,067.21-46,458.17

Finding the Fourth Proportional to 78,289.27, 108,067.21 and 46,458.17

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Solution

The fourth proportional to 78,289.27, 108,067.21 and 46,458.17 is: 64,128.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,289.27 : 108,067.21 = 46,458.17 : x
  2. Step 2: Convert to fraction form
    78,289.27/108,067.21 = 46,458.17/x
  3. Step 3: Cross multiply
    78,289.27x = 108,067.21 × 46,458.17
  4. Step 4: Simplify right side
    78,289.27x = 5,020,604,157.12
  5. Step 5: Solve for x
    x = 5,020,604,157.12/78,289.27
  6. Step 6: Final answer
    x = 64,128.89

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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.