Home / 76,217.77-105,179.11-42,225.51

Finding the Fourth Proportional to 76,217.77, 105,179.11 and 42,225.51

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Solution

The fourth proportional to 76,217.77, 105,179.11 and 42,225.51 is: 58,270.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,217.77 : 105,179.11 = 42,225.51 : x
  2. Step 2: Convert to fraction form
    76,217.77/105,179.11 = 42,225.51/x
  3. Step 3: Cross multiply
    76,217.77x = 105,179.11 × 42,225.51
  4. Step 4: Simplify right side
    76,217.77x = 4,441,241,849.95
  5. Step 5: Solve for x
    x = 4,441,241,849.95/76,217.77
  6. Step 6: Final answer
    x = 58,270.42

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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.