Home / 85,596.76-118,139.75-57,351.52

Finding the Fourth Proportional to 85,596.76, 118,139.75 and 57,351.52

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Solution

The fourth proportional to 85,596.76, 118,139.75 and 57,351.52 is: 79,155.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,596.76 : 118,139.75 = 57,351.52 : x
  2. Step 2: Convert to fraction form
    85,596.76/118,139.75 = 57,351.52/x
  3. Step 3: Cross multiply
    85,596.76x = 118,139.75 × 57,351.52
  4. Step 4: Simplify right side
    85,596.76x = 6,775,494,234.92
  5. Step 5: Solve for x
    x = 6,775,494,234.92/85,596.76
  6. Step 6: Final answer
    x = 79,155.97

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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.