Home / 87,870.85-121,262.12-47,584.63

Finding the Fourth Proportional to 87,870.85, 121,262.12 and 47,584.63

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Solution

The fourth proportional to 87,870.85, 121,262.12 and 47,584.63 is: 65,666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,870.85 : 121,262.12 = 47,584.63 : x
  2. Step 2: Convert to fraction form
    87,870.85/121,262.12 = 47,584.63/x
  3. Step 3: Cross multiply
    87,870.85x = 121,262.12 × 47,584.63
  4. Step 4: Simplify right side
    87,870.85x = 5,770,213,113.22
  5. Step 5: Solve for x
    x = 5,770,213,113.22/87,870.85
  6. Step 6: Final answer
    x = 65,666.98

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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.