Home / 75,175.48-103,740.78-43,345.72

Finding the Fourth Proportional to 75,175.48, 103,740.78 and 43,345.72

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Solution

The fourth proportional to 75,175.48, 103,740.78 and 43,345.72 is: 59,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,175.48 : 103,740.78 = 43,345.72 : x
  2. Step 2: Convert to fraction form
    75,175.48/103,740.78 = 43,345.72/x
  3. Step 3: Cross multiply
    75,175.48x = 103,740.78 × 43,345.72
  4. Step 4: Simplify right side
    75,175.48x = 4,496,718,802.46
  5. Step 5: Solve for x
    x = 4,496,718,802.46/75,175.48
  6. Step 6: Final answer
    x = 59,816.30

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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.