Home / 66,142.04-99,175.74-21,756.80

Finding the Fourth Proportional to 66,142.04, 99,175.74 and 21,756.80

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Solution

The fourth proportional to 66,142.04, 99,175.74 and 21,756.80 is: 32,622.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,142.04 : 99,175.74 = 21,756.80 : x
  2. Step 2: Convert to fraction form
    66,142.04/99,175.74 = 21,756.80/x
  3. Step 3: Cross multiply
    66,142.04x = 99,175.74 × 21,756.80
  4. Step 4: Simplify right side
    66,142.04x = 2,157,746,740.03
  5. Step 5: Solve for x
    x = 2,157,746,740.03/66,142.04
  6. Step 6: Final answer
    x = 32,622.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.