Home / 66,835.95-92,233.59-39,984.78

Finding the Fourth Proportional to 66,835.95, 92,233.59 and 39,984.78

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Solution

The fourth proportional to 66,835.95, 92,233.59 and 39,984.78 is: 55,178.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,835.95 : 92,233.59 = 39,984.78 : x
  2. Step 2: Convert to fraction form
    66,835.95/92,233.59 = 39,984.78/x
  3. Step 3: Cross multiply
    66,835.95x = 92,233.59 × 39,984.78
  4. Step 4: Simplify right side
    66,835.95x = 3,687,939,804.76
  5. Step 5: Solve for x
    x = 3,687,939,804.76/66,835.95
  6. Step 6: Final answer
    x = 55,178.98

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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.