Home / 74,017.62-102,154.05-42,179.22

Finding the Fourth Proportional to 74,017.62, 102,154.05 and 42,179.22

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Solution

The fourth proportional to 74,017.62, 102,154.05 and 42,179.22 is: 58,212.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,017.62 : 102,154.05 = 42,179.22 : x
  2. Step 2: Convert to fraction form
    74,017.62/102,154.05 = 42,179.22/x
  3. Step 3: Cross multiply
    74,017.62x = 102,154.05 × 42,179.22
  4. Step 4: Simplify right side
    74,017.62x = 4,308,778,148.84
  5. Step 5: Solve for x
    x = 4,308,778,148.84/74,017.62
  6. Step 6: Final answer
    x = 58,212.87

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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.