Home / 80,895.84-121,265.37-30,937.47

Finding the Fourth Proportional to 80,895.84, 121,265.37 and 30,937.47

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Solution

The fourth proportional to 80,895.84, 121,265.37 and 30,937.47 is: 46,376.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,895.84 : 121,265.37 = 30,937.47 : x
  2. Step 2: Convert to fraction form
    80,895.84/121,265.37 = 30,937.47/x
  3. Step 3: Cross multiply
    80,895.84x = 121,265.37 × 30,937.47
  4. Step 4: Simplify right side
    80,895.84x = 3,751,643,746.41
  5. Step 5: Solve for x
    x = 3,751,643,746.41/80,895.84
  6. Step 6: Final answer
    x = 46,376.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.