Home / 78,346.68-108,120.24-46,515.66

Finding the Fourth Proportional to 78,346.68, 108,120.24 and 46,515.66

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Solution

The fourth proportional to 78,346.68, 108,120.24 and 46,515.66 is: 64,192.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,346.68 : 108,120.24 = 46,515.66 : x
  2. Step 2: Convert to fraction form
    78,346.68/108,120.24 = 46,515.66/x
  3. Step 3: Cross multiply
    78,346.68x = 108,120.24 × 46,515.66
  4. Step 4: Simplify right side
    78,346.68x = 5,029,284,322.96
  5. Step 5: Solve for x
    x = 5,029,284,322.96/78,346.68
  6. Step 6: Final answer
    x = 64,192.69

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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.