Home / 66,285.49-91,474.14-36,070.80

Finding the Fourth Proportional to 66,285.49, 91,474.14 and 36,070.80

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Solution

The fourth proportional to 66,285.49, 91,474.14 and 36,070.80 is: 49,777.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,285.49 : 91,474.14 = 36,070.80 : x
  2. Step 2: Convert to fraction form
    66,285.49/91,474.14 = 36,070.80/x
  3. Step 3: Cross multiply
    66,285.49x = 91,474.14 × 36,070.80
  4. Step 4: Simplify right side
    66,285.49x = 3,299,545,409.11
  5. Step 5: Solve for x
    x = 3,299,545,409.11/66,285.49
  6. Step 6: Final answer
    x = 49,777.79

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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.