Home / 84,918.18-117,182.08-49,105.64

Finding the Fourth Proportional to 84,918.18, 117,182.08 and 49,105.64

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Solution

The fourth proportional to 84,918.18, 117,182.08 and 49,105.64 is: 67,762.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,918.18 : 117,182.08 = 49,105.64 : x
  2. Step 2: Convert to fraction form
    84,918.18/117,182.08 = 49,105.64/x
  3. Step 3: Cross multiply
    84,918.18x = 117,182.08 × 49,105.64
  4. Step 4: Simplify right side
    84,918.18x = 5,754,301,034.93
  5. Step 5: Solve for x
    x = 5,754,301,034.93/84,918.18
  6. Step 6: Final answer
    x = 67,762.89

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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.