Home / 78,473.94-108,296.16-42,666.36

Finding the Fourth Proportional to 78,473.94, 108,296.16 and 42,666.36

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Solution

The fourth proportional to 78,473.94, 108,296.16 and 42,666.36 is: 58,880.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,473.94 : 108,296.16 = 42,666.36 : x
  2. Step 2: Convert to fraction form
    78,473.94/108,296.16 = 42,666.36/x
  3. Step 3: Cross multiply
    78,473.94x = 108,296.16 × 42,666.36
  4. Step 4: Simplify right side
    78,473.94x = 4,620,602,949.18
  5. Step 5: Solve for x
    x = 4,620,602,949.18/78,473.94
  6. Step 6: Final answer
    x = 58,880.73

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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.