Home / 86,020.16-129,030.23-26,860.89

Finding the Fourth Proportional to 86,020.16, 129,030.23 and 26,860.89

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Solution

The fourth proportional to 86,020.16, 129,030.23 and 26,860.89 is: 40,291.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,020.16 : 129,030.23 = 26,860.89 : x
  2. Step 2: Convert to fraction form
    86,020.16/129,030.23 = 26,860.89/x
  3. Step 3: Cross multiply
    86,020.16x = 129,030.23 × 26,860.89
  4. Step 4: Simplify right side
    86,020.16x = 3,465,867,365.72
  5. Step 5: Solve for x
    x = 3,465,867,365.72/86,020.16
  6. Step 6: Final answer
    x = 40,291.34

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Similar ratio
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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.