Home / 74,592.63-102,934.80-42,739.38

Finding the Fourth Proportional to 74,592.63, 102,934.80 and 42,739.38

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Solution

The fourth proportional to 74,592.63, 102,934.80 and 42,739.38 is: 58,978.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,592.63 : 102,934.80 = 42,739.38 : x
  2. Step 2: Convert to fraction form
    74,592.63/102,934.80 = 42,739.38/x
  3. Step 3: Cross multiply
    74,592.63x = 102,934.80 × 42,739.38
  4. Step 4: Simplify right side
    74,592.63x = 4,399,369,532.42
  5. Step 5: Solve for x
    x = 4,399,369,532.42/74,592.63
  6. Step 6: Final answer
    x = 58,978.61

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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.