Home / 84,828-117,077.04-49,038.76

Finding the Fourth Proportional to 84,828, 117,077.04 and 49,038.76

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Solution

The fourth proportional to 84,828, 117,077.04 and 49,038.76 is: 67,681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,828 : 117,077.04 = 49,038.76 : x
  2. Step 2: Convert to fraction form
    84,828/117,077.04 = 49,038.76/x
  3. Step 3: Cross multiply
    84,828x = 117,077.04 × 49,038.76
  4. Step 4: Simplify right side
    84,828x = 5,741,312,866.07
  5. Step 5: Solve for x
    x = 5,741,312,866.07/84,828
  6. Step 6: Final answer
    x = 67,681.81

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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.