Home / 86,277.80-129,447.82-30,126.18

Finding the Fourth Proportional to 86,277.80, 129,447.82 and 30,126.18

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Solution

The fourth proportional to 86,277.80, 129,447.82 and 30,126.18 is: 45,200.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,277.80 : 129,447.82 = 30,126.18 : x
  2. Step 2: Convert to fraction form
    86,277.80/129,447.82 = 30,126.18/x
  3. Step 3: Cross multiply
    86,277.80x = 129,447.82 × 30,126.18
  4. Step 4: Simplify right side
    86,277.80x = 3,899,768,325.93
  5. Step 5: Solve for x
    x = 3,899,768,325.93/86,277.80
  6. Step 6: Final answer
    x = 45,200.14

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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.