Home / 66,320.32-91,492.98-43,630.12

Finding the Fourth Proportional to 66,320.32, 91,492.98 and 43,630.12

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Solution

The fourth proportional to 66,320.32, 91,492.98 and 43,630.12 is: 60,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,320.32 : 91,492.98 = 43,630.12 : x
  2. Step 2: Convert to fraction form
    66,320.32/91,492.98 = 43,630.12/x
  3. Step 3: Cross multiply
    66,320.32x = 91,492.98 × 43,630.12
  4. Step 4: Simplify right side
    66,320.32x = 3,991,849,696.56
  5. Step 5: Solve for x
    x = 3,991,849,696.56/66,320.32
  6. Step 6: Final answer
    x = 60,190.45

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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.