Home / 78,804.20-108,750.15-42,994.95

Finding the Fourth Proportional to 78,804.20, 108,750.15 and 42,994.95

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Solution

The fourth proportional to 78,804.20, 108,750.15 and 42,994.95 is: 59,333.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804.20 : 108,750.15 = 42,994.95 : x
  2. Step 2: Convert to fraction form
    78,804.20/108,750.15 = 42,994.95/x
  3. Step 3: Cross multiply
    78,804.20x = 108,750.15 × 42,994.95
  4. Step 4: Simplify right side
    78,804.20x = 4,675,707,261.74
  5. Step 5: Solve for x
    x = 4,675,707,261.74/78,804.20
  6. Step 6: Final answer
    x = 59,333.23

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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.