Home / 85,836.88-118,436.67-51,838.75

Finding the Fourth Proportional to 85,836.88, 118,436.67 and 51,838.75

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Solution

The fourth proportional to 85,836.88, 118,436.67 and 51,838.75 is: 71,526.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,836.88 : 118,436.67 = 51,838.75 : x
  2. Step 2: Convert to fraction form
    85,836.88/118,436.67 = 51,838.75/x
  3. Step 3: Cross multiply
    85,836.88x = 118,436.67 × 51,838.75
  4. Step 4: Simplify right side
    85,836.88x = 6,139,608,926.96
  5. Step 5: Solve for x
    x = 6,139,608,926.96/85,836.88
  6. Step 6: Final answer
    x = 71,526.47

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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.