Home / 69,175.64-103,528.90-42,538.36

Finding the Fourth Proportional to 69,175.64, 103,528.90 and 42,538.36

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Solution

The fourth proportional to 69,175.64, 103,528.90 and 42,538.36 is: 63,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,175.64 : 103,528.90 = 42,538.36 : x
  2. Step 2: Convert to fraction form
    69,175.64/103,528.90 = 42,538.36/x
  3. Step 3: Cross multiply
    69,175.64x = 103,528.90 × 42,538.36
  4. Step 4: Simplify right side
    69,175.64x = 4,403,949,253.44
  5. Step 5: Solve for x
    x = 4,403,949,253.44/69,175.64
  6. Step 6: Final answer
    x = 63,663.30

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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.