Home / 86,921.00-120,008.59-66,741.67

Finding the Fourth Proportional to 86,921.00, 120,008.59 and 66,741.67

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Solution

The fourth proportional to 86,921.00, 120,008.59 and 66,741.67 is: 92,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,921.00 : 120,008.59 = 66,741.67 : x
  2. Step 2: Convert to fraction form
    86,921.00/120,008.59 = 66,741.67/x
  3. Step 3: Cross multiply
    86,921.00x = 120,008.59 × 66,741.67
  4. Step 4: Simplify right side
    86,921.00x = 8,009,573,694.10
  5. Step 5: Solve for x
    x = 8,009,573,694.10/86,921.00
  6. Step 6: Final answer
    x = 92,147.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.