Home / 78,973.03-118,512.85-30,935.68

Finding the Fourth Proportional to 78,973.03, 118,512.85 and 30,935.68

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Solution

The fourth proportional to 78,973.03, 118,512.85 and 30,935.68 is: 46,424.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,973.03 : 118,512.85 = 30,935.68 : x
  2. Step 2: Convert to fraction form
    78,973.03/118,512.85 = 30,935.68/x
  3. Step 3: Cross multiply
    78,973.03x = 118,512.85 × 30,935.68
  4. Step 4: Simplify right side
    78,973.03x = 3,666,274,856.25
  5. Step 5: Solve for x
    x = 3,666,274,856.25/78,973.03
  6. Step 6: Final answer
    x = 46,424.39

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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.