Home / 84,117.78-116,089.52-48,314.70

Finding the Fourth Proportional to 84,117.78, 116,089.52 and 48,314.70

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Solution

The fourth proportional to 84,117.78, 116,089.52 and 48,314.70 is: 66,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,117.78 : 116,089.52 = 48,314.70 : x
  2. Step 2: Convert to fraction form
    84,117.78/116,089.52 = 48,314.70/x
  3. Step 3: Cross multiply
    84,117.78x = 116,089.52 × 48,314.70
  4. Step 4: Simplify right side
    84,117.78x = 5,608,830,090.37
  5. Step 5: Solve for x
    x = 5,608,830,090.37/84,117.78
  6. Step 6: Final answer
    x = 66,678.29

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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.