Home / 67,764.94-93,513.10-39,085.78

Finding the Fourth Proportional to 67,764.94, 93,513.10 and 39,085.78

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Solution

The fourth proportional to 67,764.94, 93,513.10 and 39,085.78 is: 53,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,764.94 : 93,513.10 = 39,085.78 : x
  2. Step 2: Convert to fraction form
    67,764.94/93,513.10 = 39,085.78/x
  3. Step 3: Cross multiply
    67,764.94x = 93,513.10 × 39,085.78
  4. Step 4: Simplify right side
    67,764.94x = 3,655,032,370.84
  5. Step 5: Solve for x
    x = 3,655,032,370.84/67,764.94
  6. Step 6: Final answer
    x = 53,936.92

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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.