Home / 85,653.29-118,246.31-53,397.74

Finding the Fourth Proportional to 85,653.29, 118,246.31 and 53,397.74

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Solution

The fourth proportional to 85,653.29, 118,246.31 and 53,397.74 is: 73,716.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,653.29 : 118,246.31 = 53,397.74 : x
  2. Step 2: Convert to fraction form
    85,653.29/118,246.31 = 53,397.74/x
  3. Step 3: Cross multiply
    85,653.29x = 118,246.31 × 53,397.74
  4. Step 4: Simplify right side
    85,653.29x = 6,314,086,012.96
  5. Step 5: Solve for x
    x = 6,314,086,012.96/85,653.29
  6. Step 6: Final answer
    x = 73,716.79

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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.