Home / 86,148.60-129,091-57,964.24

Finding the Fourth Proportional to 86,148.60, 129,091 and 57,964.24

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Solution

The fourth proportional to 86,148.60, 129,091 and 57,964.24 is: 86,857.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,148.60 : 129,091 = 57,964.24 : x
  2. Step 2: Convert to fraction form
    86,148.60/129,091 = 57,964.24/x
  3. Step 3: Cross multiply
    86,148.60x = 129,091 × 57,964.24
  4. Step 4: Simplify right side
    86,148.60x = 7,482,661,705.84
  5. Step 5: Solve for x
    x = 7,482,661,705.84/86,148.60
  6. Step 6: Final answer
    x = 86,857.61

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1.5x scale

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.