Home / 66,759.06-92,135.68-39,901.34

Finding the Fourth Proportional to 66,759.06, 92,135.68 and 39,901.34

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Solution

The fourth proportional to 66,759.06, 92,135.68 and 39,901.34 is: 55,068.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,759.06 : 92,135.68 = 39,901.34 : x
  2. Step 2: Convert to fraction form
    66,759.06/92,135.68 = 39,901.34/x
  3. Step 3: Cross multiply
    66,759.06x = 92,135.68 × 39,901.34
  4. Step 4: Simplify right side
    66,759.06x = 3,676,337,093.81
  5. Step 5: Solve for x
    x = 3,676,337,093.81/66,759.06
  6. Step 6: Final answer
    x = 55,068.74

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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.