Home / 91,975.36-137,933.88-39,370.72

Finding the Fourth Proportional to 91,975.36, 137,933.88 and 39,370.72

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Solution

The fourth proportional to 91,975.36, 137,933.88 and 39,370.72 is: 59,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,975.36 : 137,933.88 = 39,370.72 : x
  2. Step 2: Convert to fraction form
    91,975.36/137,933.88 = 39,370.72/x
  3. Step 3: Cross multiply
    91,975.36x = 137,933.88 × 39,370.72
  4. Step 4: Simplify right side
    91,975.36x = 5,430,556,167.99
  5. Step 5: Solve for x
    x = 5,430,556,167.99/91,975.36
  6. Step 6: Final answer
    x = 59,043.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.