Home / 86,277.42-129,447.27-30,125.80

Finding the Fourth Proportional to 86,277.42, 129,447.27 and 30,125.80

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Solution

The fourth proportional to 86,277.42, 129,447.27 and 30,125.80 is: 45,199.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,277.42 : 129,447.27 = 30,125.80 : x
  2. Step 2: Convert to fraction form
    86,277.42/129,447.27 = 30,125.80/x
  3. Step 3: Cross multiply
    86,277.42x = 129,447.27 × 30,125.80
  4. Step 4: Simplify right side
    86,277.42x = 3,899,702,415.94
  5. Step 5: Solve for x
    x = 3,899,702,415.94/86,277.42
  6. Step 6: Final answer
    x = 45,199.57

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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.