Home / 86,885.15-130,338.45-30,713.67

Finding the Fourth Proportional to 86,885.15, 130,338.45 and 30,713.67

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Solution

The fourth proportional to 86,885.15, 130,338.45 and 30,713.67 is: 46,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,885.15 : 130,338.45 = 30,713.67 : x
  2. Step 2: Convert to fraction form
    86,885.15/130,338.45 = 30,713.67/x
  3. Step 3: Cross multiply
    86,885.15x = 130,338.45 × 30,713.67
  4. Step 4: Simplify right side
    86,885.15x = 4,003,172,141.61
  5. Step 5: Solve for x
    x = 4,003,172,141.61/86,885.15
  6. Step 6: Final answer
    x = 46,074.30

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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.