Home / 86,020.03-129,030.05-26,860.77

Finding the Fourth Proportional to 86,020.03, 129,030.05 and 26,860.77

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Solution

The fourth proportional to 86,020.03, 129,030.05 and 26,860.77 is: 40,291.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,020.03 : 129,030.05 = 26,860.77 : x
  2. Step 2: Convert to fraction form
    86,020.03/129,030.05 = 26,860.77/x
  3. Step 3: Cross multiply
    86,020.03x = 129,030.05 × 26,860.77
  4. Step 4: Simplify right side
    86,020.03x = 3,465,846,496.14
  5. Step 5: Solve for x
    x = 3,465,846,496.14/86,020.03
  6. Step 6: Final answer
    x = 40,291.16

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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.