Home / 76,616.69-105,734.46-63,848.51

Finding the Fourth Proportional to 76,616.69, 105,734.46 and 63,848.51

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Solution

The fourth proportional to 76,616.69, 105,734.46 and 63,848.51 is: 88,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,616.69 : 105,734.46 = 63,848.51 : x
  2. Step 2: Convert to fraction form
    76,616.69/105,734.46 = 63,848.51/x
  3. Step 3: Cross multiply
    76,616.69x = 105,734.46 × 63,848.51
  4. Step 4: Simplify right side
    76,616.69x = 6,750,987,197.98
  5. Step 5: Solve for x
    x = 6,750,987,197.98/76,616.69
  6. Step 6: Final answer
    x = 88,113.80

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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.