Home / 81,039.48-121,563-24,877.32

Finding the Fourth Proportional to 81,039.48, 121,563 and 24,877.32

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Solution

The fourth proportional to 81,039.48, 121,563 and 24,877.32 is: 37,317.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,039.48 : 121,563 = 24,877.32 : x
  2. Step 2: Convert to fraction form
    81,039.48/121,563 = 24,877.32/x
  3. Step 3: Cross multiply
    81,039.48x = 121,563 × 24,877.32
  4. Step 4: Simplify right side
    81,039.48x = 3,024,161,651.16
  5. Step 5: Solve for x
    x = 3,024,161,651.16/81,039.48
  6. Step 6: Final answer
    x = 37,317.14

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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.