Home / 76,776.84-106,017.45-48,144.63

Finding the Fourth Proportional to 76,776.84, 106,017.45 and 48,144.63

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Solution

The fourth proportional to 76,776.84, 106,017.45 and 48,144.63 is: 66,480.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,776.84 : 106,017.45 = 48,144.63 : x
  2. Step 2: Convert to fraction form
    76,776.84/106,017.45 = 48,144.63/x
  3. Step 3: Cross multiply
    76,776.84x = 106,017.45 × 48,144.63
  4. Step 4: Simplify right side
    76,776.84x = 5,104,170,903.79
  5. Step 5: Solve for x
    x = 5,104,170,903.79/76,776.84
  6. Step 6: Final answer
    x = 66,480.61

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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.