Home / 66,030.99-90,996.80-47,135.31

Finding the Fourth Proportional to 66,030.99, 90,996.80 and 47,135.31

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Solution

The fourth proportional to 66,030.99, 90,996.80 and 47,135.31 is: 64,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,030.99 : 90,996.80 = 47,135.31 : x
  2. Step 2: Convert to fraction form
    66,030.99/90,996.80 = 47,135.31/x
  3. Step 3: Cross multiply
    66,030.99x = 90,996.80 × 47,135.31
  4. Step 4: Simplify right side
    66,030.99x = 4,289,162,141.33
  5. Step 5: Solve for x
    x = 4,289,162,141.33/66,030.99
  6. Step 6: Final answer
    x = 64,956.80

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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.