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Finding the Fourth Proportional to 66,070.80, 99,106.20 and 60,627.60

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Solution

The fourth proportional to 66,070.80, 99,106.20 and 60,627.60 is: 90,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,070.80 : 99,106.20 = 60,627.60 : x
  2. Step 2: Convert to fraction form
    66,070.80/99,106.20 = 60,627.60/x
  3. Step 3: Cross multiply
    66,070.80x = 99,106.20 × 60,627.60
  4. Step 4: Simplify right side
    66,070.80x = 6,008,571,051.12
  5. Step 5: Solve for x
    x = 6,008,571,051.12/66,070.80
  6. Step 6: Final answer
    x = 90,941.40

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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.