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Finding the Fourth Proportional to 65,980.37, 91,051.80 and 37,299.59

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Solution

The fourth proportional to 65,980.37, 91,051.80 and 37,299.59 is: 51,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,980.37 : 91,051.80 = 37,299.59 : x
  2. Step 2: Convert to fraction form
    65,980.37/91,051.80 = 37,299.59/x
  3. Step 3: Cross multiply
    65,980.37x = 91,051.80 × 37,299.59
  4. Step 4: Simplify right side
    65,980.37x = 3,396,194,555.07
  5. Step 5: Solve for x
    x = 3,396,194,555.07/65,980.37
  6. Step 6: Final answer
    x = 51,472.80

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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.