Home / 78,515.94-108,316.26-46,666.74

Finding the Fourth Proportional to 78,515.94, 108,316.26 and 46,666.74

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Solution

The fourth proportional to 78,515.94, 108,316.26 and 46,666.74 is: 64,378.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,515.94 : 108,316.26 = 46,666.74 : x
  2. Step 2: Convert to fraction form
    78,515.94/108,316.26 = 46,666.74/x
  3. Step 3: Cross multiply
    78,515.94x = 108,316.26 × 46,666.74
  4. Step 4: Simplify right side
    78,515.94x = 5,054,766,743.19
  5. Step 5: Solve for x
    x = 5,054,766,743.19/78,515.94
  6. Step 6: Final answer
    x = 64,378.86

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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.