Home / 66,131.32-91,211.91-43,166.20

Finding the Fourth Proportional to 66,131.32, 91,211.91 and 43,166.20

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Solution

The fourth proportional to 66,131.32, 91,211.91 and 43,166.20 is: 59,537.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,131.32 : 91,211.91 = 43,166.20 : x
  2. Step 2: Convert to fraction form
    66,131.32/91,211.91 = 43,166.20/x
  3. Step 3: Cross multiply
    66,131.32x = 91,211.91 × 43,166.20
  4. Step 4: Simplify right side
    66,131.32x = 3,937,271,549.44
  5. Step 5: Solve for x
    x = 3,937,271,549.44/66,131.32
  6. Step 6: Final answer
    x = 59,537.17

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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.