Home / 76,161.47-105,106.10-42,169.95

Finding the Fourth Proportional to 76,161.47, 105,106.10 and 42,169.95

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Solution

The fourth proportional to 76,161.47, 105,106.10 and 42,169.95 is: 58,196.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,161.47 : 105,106.10 = 42,169.95 : x
  2. Step 2: Convert to fraction form
    76,161.47/105,106.10 = 42,169.95/x
  3. Step 3: Cross multiply
    76,161.47x = 105,106.10 × 42,169.95
  4. Step 4: Simplify right side
    76,161.47x = 4,432,318,770.85
  5. Step 5: Solve for x
    x = 4,432,318,770.85/76,161.47
  6. Step 6: Final answer
    x = 58,196.34

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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.