Home / 85,303.73-117,695.53-55,090.33

Finding the Fourth Proportional to 85,303.73, 117,695.53 and 55,090.33

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Solution

The fourth proportional to 85,303.73, 117,695.53 and 55,090.33 is: 76,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,303.73 : 117,695.53 = 55,090.33 : x
  2. Step 2: Convert to fraction form
    85,303.73/117,695.53 = 55,090.33/x
  3. Step 3: Cross multiply
    85,303.73x = 117,695.53 × 55,090.33
  4. Step 4: Simplify right side
    85,303.73x = 6,483,885,361.85
  5. Step 5: Solve for x
    x = 6,483,885,361.85/85,303.73
  6. Step 6: Final answer
    x = 76,009.40

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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.