Home / 81,209.34-121,827.15-25,036.31

Finding the Fourth Proportional to 81,209.34, 121,827.15 and 25,036.31

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Solution

The fourth proportional to 81,209.34, 121,827.15 and 25,036.31 is: 37,558.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,209.34 : 121,827.15 = 25,036.31 : x
  2. Step 2: Convert to fraction form
    81,209.34/121,827.15 = 25,036.31/x
  3. Step 3: Cross multiply
    81,209.34x = 121,827.15 × 25,036.31
  4. Step 4: Simplify right side
    81,209.34x = 3,050,102,598.38
  5. Step 5: Solve for x
    x = 3,050,102,598.38/81,209.34
  6. Step 6: Final answer
    x = 37,558.52

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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.