Home / 86,277.79-129,447.83-30,126.18

Finding the Fourth Proportional to 86,277.79, 129,447.83 and 30,126.18

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Solution

The fourth proportional to 86,277.79, 129,447.83 and 30,126.18 is: 45,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,277.79 : 129,447.83 = 30,126.18 : x
  2. Step 2: Convert to fraction form
    86,277.79/129,447.83 = 30,126.18/x
  3. Step 3: Cross multiply
    86,277.79x = 129,447.83 × 30,126.18
  4. Step 4: Simplify right side
    86,277.79x = 3,899,768,627.19
  5. Step 5: Solve for x
    x = 3,899,768,627.19/86,277.79
  6. Step 6: Final answer
    x = 45,200.15

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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.