Home / 75,411.93-113,132.48-28,661.16

Finding the Fourth Proportional to 75,411.93, 113,132.48 and 28,661.16

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Solution

The fourth proportional to 75,411.93, 113,132.48 and 28,661.16 is: 42,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,411.93 : 113,132.48 = 28,661.16 : x
  2. Step 2: Convert to fraction form
    75,411.93/113,132.48 = 28,661.16/x
  3. Step 3: Cross multiply
    75,411.93x = 113,132.48 × 28,661.16
  4. Step 4: Simplify right side
    75,411.93x = 3,242,507,967.17
  5. Step 5: Solve for x
    x = 3,242,507,967.17/75,411.93
  6. Step 6: Final answer
    x = 42,997.28

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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.