Home / 85,908.42-118,529.37-55,695.06

Finding the Fourth Proportional to 85,908.42, 118,529.37 and 55,695.06

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Solution

The fourth proportional to 85,908.42, 118,529.37 and 55,695.06 is: 76,843.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,908.42 : 118,529.37 = 55,695.06 : x
  2. Step 2: Convert to fraction form
    85,908.42/118,529.37 = 55,695.06/x
  3. Step 3: Cross multiply
    85,908.42x = 118,529.37 × 55,695.06
  4. Step 4: Simplify right side
    85,908.42x = 6,601,500,373.91
  5. Step 5: Solve for x
    x = 6,601,500,373.91/85,908.42
  6. Step 6: Final answer
    x = 76,843.46

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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.