Home / 76,204.28-105,161.74-42,670.28

Finding the Fourth Proportional to 76,204.28, 105,161.74 and 42,670.28

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Solution

The fourth proportional to 76,204.28, 105,161.74 and 42,670.28 is: 58,884.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,204.28 : 105,161.74 = 42,670.28 : x
  2. Step 2: Convert to fraction form
    76,204.28/105,161.74 = 42,670.28/x
  3. Step 3: Cross multiply
    76,204.28x = 105,161.74 × 42,670.28
  4. Step 4: Simplify right side
    76,204.28x = 4,487,280,891.09
  5. Step 5: Solve for x
    x = 4,487,280,891.09/76,204.28
  6. Step 6: Final answer
    x = 58,884.89

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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.