Home / 76,791.04-105,966.24-42,334.24

Finding the Fourth Proportional to 76,791.04, 105,966.24 and 42,334.24

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Solution

The fourth proportional to 76,791.04, 105,966.24 and 42,334.24 is: 58,418.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,791.04 : 105,966.24 = 42,334.24 : x
  2. Step 2: Convert to fraction form
    76,791.04/105,966.24 = 42,334.24/x
  3. Step 3: Cross multiply
    76,791.04x = 105,966.24 × 42,334.24
  4. Step 4: Simplify right side
    76,791.04x = 4,486,000,236.06
  5. Step 5: Solve for x
    x = 4,486,000,236.06/76,791.04
  6. Step 6: Final answer
    x = 58,418.28

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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.