Home / 85,739.36-118,317-48,011.68

Finding the Fourth Proportional to 85,739.36, 118,317 and 48,011.68

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Solution

The fourth proportional to 85,739.36, 118,317 and 48,011.68 is: 66,254.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,739.36 : 118,317 = 48,011.68 : x
  2. Step 2: Convert to fraction form
    85,739.36/118,317 = 48,011.68/x
  3. Step 3: Cross multiply
    85,739.36x = 118,317 × 48,011.68
  4. Step 4: Simplify right side
    85,739.36x = 5,680,597,942.56
  5. Step 5: Solve for x
    x = 5,680,597,942.56/85,739.36
  6. Step 6: Final answer
    x = 66,254.26

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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.