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Finding the Fourth Proportional to 81,482.51, 122,226.33 and 25,322.91

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Solution

The fourth proportional to 81,482.51, 122,226.33 and 25,322.91 is: 37,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,482.51 : 122,226.33 = 25,322.91 : x
  2. Step 2: Convert to fraction form
    81,482.51/122,226.33 = 25,322.91/x
  3. Step 3: Cross multiply
    81,482.51x = 122,226.33 × 25,322.91
  4. Step 4: Simplify right side
    81,482.51x = 3,095,126,354.22
  5. Step 5: Solve for x
    x = 3,095,126,354.22/81,482.51
  6. Step 6: Final answer
    x = 37,985.16

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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.