Home / 66,409.02-91,641.75-36,193.70

Finding the Fourth Proportional to 66,409.02, 91,641.75 and 36,193.70

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Solution

The fourth proportional to 66,409.02, 91,641.75 and 36,193.70 is: 49,945.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,409.02 : 91,641.75 = 36,193.70 : x
  2. Step 2: Convert to fraction form
    66,409.02/91,641.75 = 36,193.70/x
  3. Step 3: Cross multiply
    66,409.02x = 91,641.75 × 36,193.70
  4. Step 4: Simplify right side
    66,409.02x = 3,316,854,006.98
  5. Step 5: Solve for x
    x = 3,316,854,006.98/66,409.02
  6. Step 6: Final answer
    x = 49,945.84

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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.