Home / 66,036.47-91,197.90-61,804.62

Finding the Fourth Proportional to 66,036.47, 91,197.90 and 61,804.62

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Solution

The fourth proportional to 66,036.47, 91,197.90 and 61,804.62 is: 85,353.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,036.47 : 91,197.90 = 61,804.62 : x
  2. Step 2: Convert to fraction form
    66,036.47/91,197.90 = 61,804.62/x
  3. Step 3: Cross multiply
    66,036.47x = 91,197.90 × 61,804.62
  4. Step 4: Simplify right side
    66,036.47x = 5,636,451,554.30
  5. Step 5: Solve for x
    x = 5,636,451,554.30/66,036.47
  6. Step 6: Final answer
    x = 85,353.62

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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.