Home / 76,504.05-105,573.47-42,511.66

Finding the Fourth Proportional to 76,504.05, 105,573.47 and 42,511.66

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Solution

The fourth proportional to 76,504.05, 105,573.47 and 42,511.66 is: 58,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,504.05 : 105,573.47 = 42,511.66 : x
  2. Step 2: Convert to fraction form
    76,504.05/105,573.47 = 42,511.66/x
  3. Step 3: Cross multiply
    76,504.05x = 105,573.47 × 42,511.66
  4. Step 4: Simplify right side
    76,504.05x = 4,488,102,933.79
  5. Step 5: Solve for x
    x = 4,488,102,933.79/76,504.05
  6. Step 6: Final answer
    x = 58,664.91

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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.