Home / 61,299.46-91,946.69-21,327.59

Finding the Fourth Proportional to 61,299.46, 91,946.69 and 21,327.59

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Solution

The fourth proportional to 61,299.46, 91,946.69 and 21,327.59 is: 31,990.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,299.46 : 91,946.69 = 21,327.59 : x
  2. Step 2: Convert to fraction form
    61,299.46/91,946.69 = 21,327.59/x
  3. Step 3: Cross multiply
    61,299.46x = 91,946.69 × 21,327.59
  4. Step 4: Simplify right side
    61,299.46x = 1,961,000,739.81
  5. Step 5: Solve for x
    x = 1,961,000,739.81/61,299.46
  6. Step 6: Final answer
    x = 31,990.51

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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.