Home / 85,101.81-117,438.84-53,288.25

Finding the Fourth Proportional to 85,101.81, 117,438.84 and 53,288.25

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Solution

The fourth proportional to 85,101.81, 117,438.84 and 53,288.25 is: 73,536.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,101.81 : 117,438.84 = 53,288.25 : x
  2. Step 2: Convert to fraction form
    85,101.81/117,438.84 = 53,288.25/x
  3. Step 3: Cross multiply
    85,101.81x = 117,438.84 × 53,288.25
  4. Step 4: Simplify right side
    85,101.81x = 6,258,110,265.63
  5. Step 5: Solve for x
    x = 6,258,110,265.63/85,101.81
  6. Step 6: Final answer
    x = 73,536.75

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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.