Home / 86,557.41-129,851.91-30,380.67

Finding the Fourth Proportional to 86,557.41, 129,851.91 and 30,380.67

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Solution

The fourth proportional to 86,557.41, 129,851.91 and 30,380.67 is: 45,576.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,557.41 : 129,851.91 = 30,380.67 : x
  2. Step 2: Convert to fraction form
    86,557.41/129,851.91 = 30,380.67/x
  3. Step 3: Cross multiply
    86,557.41x = 129,851.91 × 30,380.67
  4. Step 4: Simplify right side
    86,557.41x = 3,944,988,026.58
  5. Step 5: Solve for x
    x = 3,944,988,026.58/86,557.41
  6. Step 6: Final answer
    x = 45,576.55

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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.