Home / 78,448.96-108,275.32-46,611.74

Finding the Fourth Proportional to 78,448.96, 108,275.32 and 46,611.74

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Solution

The fourth proportional to 78,448.96, 108,275.32 and 46,611.74 is: 64,333.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,448.96 : 108,275.32 = 46,611.74 : x
  2. Step 2: Convert to fraction form
    78,448.96/108,275.32 = 46,611.74/x
  3. Step 3: Cross multiply
    78,448.96x = 108,275.32 × 46,611.74
  4. Step 4: Simplify right side
    78,448.96x = 5,046,901,064.26
  5. Step 5: Solve for x
    x = 5,046,901,064.26/78,448.96
  6. Step 6: Final answer
    x = 64,333.56

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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.