Home / 86,403.40-119,243.78-48,680.20

Finding the Fourth Proportional to 86,403.40, 119,243.78 and 48,680.20

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Solution

The fourth proportional to 86,403.40, 119,243.78 and 48,680.20 is: 67,182.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,403.40 : 119,243.78 = 48,680.20 : x
  2. Step 2: Convert to fraction form
    86,403.40/119,243.78 = 48,680.20/x
  3. Step 3: Cross multiply
    86,403.40x = 119,243.78 × 48,680.20
  4. Step 4: Simplify right side
    86,403.40x = 5,804,811,059.16
  5. Step 5: Solve for x
    x = 5,804,811,059.16/86,403.40
  6. Step 6: Final answer
    x = 67,182.67

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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.