Home / 91,578.44-137,121.54-58,117.34

Finding the Fourth Proportional to 91,578.44, 137,121.54 and 58,117.34

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Solution

The fourth proportional to 91,578.44, 137,121.54 and 58,117.34 is: 87,019.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,578.44 : 137,121.54 = 58,117.34 : x
  2. Step 2: Convert to fraction form
    91,578.44/137,121.54 = 58,117.34/x
  3. Step 3: Cross multiply
    91,578.44x = 137,121.54 × 58,117.34
  4. Step 4: Simplify right side
    91,578.44x = 7,969,139,161.50
  5. Step 5: Solve for x
    x = 7,969,139,161.50/91,578.44
  6. Step 6: Final answer
    x = 87,019.82

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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.