Home / 57,900.15-79,907.76-41,780.70

Finding the Fourth Proportional to 57,900.15, 79,907.76 and 41,780.70

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Solution

The fourth proportional to 57,900.15, 79,907.76 and 41,780.70 is: 57,661.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,900.15 : 79,907.76 = 41,780.70 : x
  2. Step 2: Convert to fraction form
    57,900.15/79,907.76 = 41,780.70/x
  3. Step 3: Cross multiply
    57,900.15x = 79,907.76 × 41,780.70
  4. Step 4: Simplify right side
    57,900.15x = 3,338,602,148.23
  5. Step 5: Solve for x
    x = 3,338,602,148.23/57,900.15
  6. Step 6: Final answer
    x = 57,661.37

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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.