Home / 76,842.07-106,042.66-42,852.75

Finding the Fourth Proportional to 76,842.07, 106,042.66 and 42,852.75

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Solution

The fourth proportional to 76,842.07, 106,042.66 and 42,852.75 is: 59,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,842.07 : 106,042.66 = 42,852.75 : x
  2. Step 2: Convert to fraction form
    76,842.07/106,042.66 = 42,852.75/x
  3. Step 3: Cross multiply
    76,842.07x = 106,042.66 × 42,852.75
  4. Step 4: Simplify right side
    76,842.07x = 4,544,219,033.26
  5. Step 5: Solve for x
    x = 4,544,219,033.26/76,842.07
  6. Step 6: Final answer
    x = 59,137.13

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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.