Home / 86,120.04-118,955.88-65,853.84

Finding the Fourth Proportional to 86,120.04, 118,955.88 and 65,853.84

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Solution

The fourth proportional to 86,120.04, 118,955.88 and 65,853.84 is: 90,962.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,120.04 : 118,955.88 = 65,853.84 : x
  2. Step 2: Convert to fraction form
    86,120.04/118,955.88 = 65,853.84/x
  3. Step 3: Cross multiply
    86,120.04x = 118,955.88 × 65,853.84
  4. Step 4: Simplify right side
    86,120.04x = 7,833,701,488.58
  5. Step 5: Solve for x
    x = 7,833,701,488.58/86,120.04
  6. Step 6: Final answer
    x = 90,962.59

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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.