Home / 66,085.31-91,197.79-35,870.62

Finding the Fourth Proportional to 66,085.31, 91,197.79 and 35,870.62

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Solution

The fourth proportional to 66,085.31, 91,197.79 and 35,870.62 is: 49,501.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,085.31 : 91,197.79 = 35,870.62 : x
  2. Step 2: Convert to fraction form
    66,085.31/91,197.79 = 35,870.62/x
  3. Step 3: Cross multiply
    66,085.31x = 91,197.79 × 35,870.62
  4. Step 4: Simplify right side
    66,085.31x = 3,271,321,269.93
  5. Step 5: Solve for x
    x = 3,271,321,269.93/66,085.31
  6. Step 6: Final answer
    x = 49,501.49

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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.