Home / 74,661.12-103,042.08-42,823.80

Finding the Fourth Proportional to 74,661.12, 103,042.08 and 42,823.80

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Solution

The fourth proportional to 74,661.12, 103,042.08 and 42,823.80 is: 59,102.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,661.12 : 103,042.08 = 42,823.80 : x
  2. Step 2: Convert to fraction form
    74,661.12/103,042.08 = 42,823.80/x
  3. Step 3: Cross multiply
    74,661.12x = 103,042.08 × 42,823.80
  4. Step 4: Simplify right side
    74,661.12x = 4,412,653,425.50
  5. Step 5: Solve for x
    x = 4,412,653,425.50/74,661.12
  6. Step 6: Final answer
    x = 59,102.43

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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.