Home / 85,713.36-118,270.38-53,859.72

Finding the Fourth Proportional to 85,713.36, 118,270.38 and 53,859.72

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Solution

The fourth proportional to 85,713.36, 118,270.38 and 53,859.72 is: 74,317.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,713.36 : 118,270.38 = 53,859.72 : x
  2. Step 2: Convert to fraction form
    85,713.36/118,270.38 = 53,859.72/x
  3. Step 3: Cross multiply
    85,713.36x = 118,270.38 × 53,859.72
  4. Step 4: Simplify right side
    85,713.36x = 6,370,009,551.09
  5. Step 5: Solve for x
    x = 6,370,009,551.09/85,713.36
  6. Step 6: Final answer
    x = 74,317.58

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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.