Home / 84,445.04-116,400.16-66,511.64

Finding the Fourth Proportional to 84,445.04, 116,400.16 and 66,511.64

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Solution

The fourth proportional to 84,445.04, 116,400.16 and 66,511.64 is: 91,680.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,445.04 : 116,400.16 = 66,511.64 : x
  2. Step 2: Convert to fraction form
    84,445.04/116,400.16 = 66,511.64/x
  3. Step 3: Cross multiply
    84,445.04x = 116,400.16 × 66,511.64
  4. Step 4: Simplify right side
    84,445.04x = 7,741,965,537.86
  5. Step 5: Solve for x
    x = 7,741,965,537.86/84,445.04
  6. Step 6: Final answer
    x = 91,680.52

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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.