Home / 68,436.64-94,410.08-42,930.40

Finding the Fourth Proportional to 68,436.64, 94,410.08 and 42,930.40

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Solution

The fourth proportional to 68,436.64, 94,410.08 and 42,930.40 is: 59,223.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,436.64 : 94,410.08 = 42,930.40 : x
  2. Step 2: Convert to fraction form
    68,436.64/94,410.08 = 42,930.40/x
  3. Step 3: Cross multiply
    68,436.64x = 94,410.08 × 42,930.40
  4. Step 4: Simplify right side
    68,436.64x = 4,053,062,498.43
  5. Step 5: Solve for x
    x = 4,053,062,498.43/68,436.64
  6. Step 6: Final answer
    x = 59,223.58

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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.