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Finding the Fourth Proportional to 99,297.66, 137,030.50 and 53,975.64

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Solution

The fourth proportional to 99,297.66, 137,030.50 and 53,975.64 is: 74,486.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,297.66 : 137,030.50 = 53,975.64 : x
  2. Step 2: Convert to fraction form
    99,297.66/137,030.50 = 53,975.64/x
  3. Step 3: Cross multiply
    99,297.66x = 137,030.50 × 53,975.64
  4. Step 4: Simplify right side
    99,297.66x = 7,396,308,937.02
  5. Step 5: Solve for x
    x = 7,396,308,937.02/99,297.66
  6. Step 6: Final answer
    x = 74,486.24

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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.