Home / 87,804.90-121,170.75-47,518.67

Finding the Fourth Proportional to 87,804.90, 121,170.75 and 47,518.67

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Solution

The fourth proportional to 87,804.90, 121,170.75 and 47,518.67 is: 65,575.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,804.90 : 121,170.75 = 47,518.67 : x
  2. Step 2: Convert to fraction form
    87,804.90/121,170.75 = 47,518.67/x
  3. Step 3: Cross multiply
    87,804.90x = 121,170.75 × 47,518.67
  4. Step 4: Simplify right side
    87,804.90x = 5,757,872,277.05
  5. Step 5: Solve for x
    x = 5,757,872,277.05/87,804.90
  6. Step 6: Final answer
    x = 65,575.75

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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.