Home / 86,268.96-129,407.01-30,114.63

Finding the Fourth Proportional to 86,268.96, 129,407.01 and 30,114.63

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Solution

The fourth proportional to 86,268.96, 129,407.01 and 30,114.63 is: 45,173.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,268.96 : 129,407.01 = 30,114.63 : x
  2. Step 2: Convert to fraction form
    86,268.96/129,407.01 = 30,114.63/x
  3. Step 3: Cross multiply
    86,268.96x = 129,407.01 × 30,114.63
  4. Step 4: Simplify right side
    86,268.96x = 3,897,044,225.56
  5. Step 5: Solve for x
    x = 3,897,044,225.56/86,268.96
  6. Step 6: Final answer
    x = 45,173.19

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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.