Home / 74,060.80-102,205.12-40,528.64

Finding the Fourth Proportional to 74,060.80, 102,205.12 and 40,528.64

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Solution

The fourth proportional to 74,060.80, 102,205.12 and 40,528.64 is: 55,930.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,060.80 : 102,205.12 = 40,528.64 : x
  2. Step 2: Convert to fraction form
    74,060.80/102,205.12 = 40,528.64/x
  3. Step 3: Cross multiply
    74,060.80x = 102,205.12 × 40,528.64
  4. Step 4: Simplify right side
    74,060.80x = 4,142,234,514.64
  5. Step 5: Solve for x
    x = 4,142,234,514.64/74,060.80
  6. Step 6: Final answer
    x = 55,930.19

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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.