Home / 85,727.75-118,252.73-56,656.31

Finding the Fourth Proportional to 85,727.75, 118,252.73 and 56,656.31

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Solution

The fourth proportional to 85,727.75, 118,252.73 and 56,656.31 is: 78,151.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,727.75 : 118,252.73 = 56,656.31 : x
  2. Step 2: Convert to fraction form
    85,727.75/118,252.73 = 56,656.31/x
  3. Step 3: Cross multiply
    85,727.75x = 118,252.73 × 56,656.31
  4. Step 4: Simplify right side
    85,727.75x = 6,699,762,879.60
  5. Step 5: Solve for x
    x = 6,699,762,879.60/85,727.75
  6. Step 6: Final answer
    x = 78,151.63

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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.