Home / 71,042.12-98,036.63-38,775.67

Finding the Fourth Proportional to 71,042.12, 98,036.63 and 38,775.67

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Solution

The fourth proportional to 71,042.12, 98,036.63 and 38,775.67 is: 53,509.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,042.12 : 98,036.63 = 38,775.67 : x
  2. Step 2: Convert to fraction form
    71,042.12/98,036.63 = 38,775.67/x
  3. Step 3: Cross multiply
    71,042.12x = 98,036.63 × 38,775.67
  4. Step 4: Simplify right side
    71,042.12x = 3,801,436,257.88
  5. Step 5: Solve for x
    x = 3,801,436,257.88/71,042.12
  6. Step 6: Final answer
    x = 53,509.61

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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.