Home / 85,403.54-117,906.08-56,762.04

Finding the Fourth Proportional to 85,403.54, 117,906.08 and 56,762.04

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Solution

The fourth proportional to 85,403.54, 117,906.08 and 56,762.04 is: 78,364.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,403.54 : 117,906.08 = 56,762.04 : x
  2. Step 2: Convert to fraction form
    85,403.54/117,906.08 = 56,762.04/x
  3. Step 3: Cross multiply
    85,403.54x = 117,906.08 × 56,762.04
  4. Step 4: Simplify right side
    85,403.54x = 6,692,589,345.39
  5. Step 5: Solve for x
    x = 6,692,589,345.39/85,403.54
  6. Step 6: Final answer
    x = 78,364.31

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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.