Home / 78,690.09-118,035.96-62,994.90

Finding the Fourth Proportional to 78,690.09, 118,035.96 and 62,994.90

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Solution

The fourth proportional to 78,690.09, 118,035.96 and 62,994.90 is: 94,493.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,690.09 : 118,035.96 = 62,994.90 : x
  2. Step 2: Convert to fraction form
    78,690.09/118,035.96 = 62,994.90/x
  3. Step 3: Cross multiply
    78,690.09x = 118,035.96 × 62,994.90
  4. Step 4: Simplify right side
    78,690.09x = 7,435,663,496.60
  5. Step 5: Solve for x
    x = 7,435,663,496.60/78,690.09
  6. Step 6: Final answer
    x = 94,493.01

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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.