Home / 76,895.21-106,112.58-42,903.15

Finding the Fourth Proportional to 76,895.21, 106,112.58 and 42,903.15

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Solution

The fourth proportional to 76,895.21, 106,112.58 and 42,903.15 is: 59,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,895.21 : 106,112.58 = 42,903.15 : x
  2. Step 2: Convert to fraction form
    76,895.21/106,112.58 = 42,903.15/x
  3. Step 3: Cross multiply
    76,895.21x = 106,112.58 × 42,903.15
  4. Step 4: Simplify right side
    76,895.21x = 4,552,563,936.63
  5. Step 5: Solve for x
    x = 4,552,563,936.63/76,895.21
  6. Step 6: Final answer
    x = 59,204.78

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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.