Home / 66,135.95-91,256.94-40,634.11

Finding the Fourth Proportional to 66,135.95, 91,256.94 and 40,634.11

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Solution

The fourth proportional to 66,135.95, 91,256.94 and 40,634.11 is: 56,068.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,135.95 : 91,256.94 = 40,634.11 : x
  2. Step 2: Convert to fraction form
    66,135.95/91,256.94 = 40,634.11/x
  3. Step 3: Cross multiply
    66,135.95x = 91,256.94 × 40,634.11
  4. Step 4: Simplify right side
    66,135.95x = 3,708,144,538.22
  5. Step 5: Solve for x
    x = 3,708,144,538.22/66,135.95
  6. Step 6: Final answer
    x = 56,068.52

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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.