Home / 79,738.98-119,558.25-42,275.40

Finding the Fourth Proportional to 79,738.98, 119,558.25 and 42,275.40

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Solution

The fourth proportional to 79,738.98, 119,558.25 and 42,275.40 is: 63,386.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,738.98 : 119,558.25 = 42,275.40 : x
  2. Step 2: Convert to fraction form
    79,738.98/119,558.25 = 42,275.40/x
  3. Step 3: Cross multiply
    79,738.98x = 119,558.25 × 42,275.40
  4. Step 4: Simplify right side
    79,738.98x = 5,054,372,842.05
  5. Step 5: Solve for x
    x = 5,054,372,842.05/79,738.98
  6. Step 6: Final answer
    x = 63,386.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.