Home / 86,977.77-120,029.34-52,986.26

Finding the Fourth Proportional to 86,977.77, 120,029.34 and 52,986.26

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Solution

The fourth proportional to 86,977.77, 120,029.34 and 52,986.26 is: 73,121.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,977.77 : 120,029.34 = 52,986.26 : x
  2. Step 2: Convert to fraction form
    86,977.77/120,029.34 = 52,986.26/x
  3. Step 3: Cross multiply
    86,977.77x = 120,029.34 × 52,986.26
  4. Step 4: Simplify right side
    86,977.77x = 6,359,905,216.72
  5. Step 5: Solve for x
    x = 6,359,905,216.72/86,977.77
  6. Step 6: Final answer
    x = 73,121.04

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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.