Home / 66,740.94-92,093.40-39,877.77

Finding the Fourth Proportional to 66,740.94, 92,093.40 and 39,877.77

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Solution

The fourth proportional to 66,740.94, 92,093.40 and 39,877.77 is: 55,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,740.94 : 92,093.40 = 39,877.77 : x
  2. Step 2: Convert to fraction form
    66,740.94/92,093.40 = 39,877.77/x
  3. Step 3: Cross multiply
    66,740.94x = 92,093.40 × 39,877.77
  4. Step 4: Simplify right side
    66,740.94x = 3,672,479,423.72
  5. Step 5: Solve for x
    x = 3,672,479,423.72/66,740.94
  6. Step 6: Final answer
    x = 55,025.89

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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.