Home / 74,137.41-102,308.67-42,306.84

Finding the Fourth Proportional to 74,137.41, 102,308.67 and 42,306.84

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Solution

The fourth proportional to 74,137.41, 102,308.67 and 42,306.84 is: 58,382.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,137.41 : 102,308.67 = 42,306.84 : x
  2. Step 2: Convert to fraction form
    74,137.41/102,308.67 = 42,306.84/x
  3. Step 3: Cross multiply
    74,137.41x = 102,308.67 × 42,306.84
  4. Step 4: Simplify right side
    74,137.41x = 4,328,356,532.30
  5. Step 5: Solve for x
    x = 4,328,356,532.30/74,137.41
  6. Step 6: Final answer
    x = 58,382.89

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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.