Home / 78,383.74-117,646.36-53,021.92

Finding the Fourth Proportional to 78,383.74, 117,646.36 and 53,021.92

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Solution

The fourth proportional to 78,383.74, 117,646.36 and 53,021.92 is: 79,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,383.74 : 117,646.36 = 53,021.92 : x
  2. Step 2: Convert to fraction form
    78,383.74/117,646.36 = 53,021.92/x
  3. Step 3: Cross multiply
    78,383.74x = 117,646.36 × 53,021.92
  4. Step 4: Simplify right side
    78,383.74x = 6,237,835,888.21
  5. Step 5: Solve for x
    x = 6,237,835,888.21/78,383.74
  6. Step 6: Final answer
    x = 79,580.74

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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.