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Finding the Fourth Proportional to 79,297.60, 118,946.40 and 74,689.60

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Solution

The fourth proportional to 79,297.60, 118,946.40 and 74,689.60 is: 112,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,297.60 : 118,946.40 = 74,689.60 : x
  2. Step 2: Convert to fraction form
    79,297.60/118,946.40 = 74,689.60/x
  3. Step 3: Cross multiply
    79,297.60x = 118,946.40 × 74,689.60
  4. Step 4: Simplify right side
    79,297.60x = 8,884,059,037.44
  5. Step 5: Solve for x
    x = 8,884,059,037.44/79,297.60
  6. Step 6: Final answer
    x = 112,034.40

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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.