Home / 81,188.72-112,038.49-45,382.06

Finding the Fourth Proportional to 81,188.72, 112,038.49 and 45,382.06

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Solution

The fourth proportional to 81,188.72, 112,038.49 and 45,382.06 is: 62,626.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,188.72 : 112,038.49 = 45,382.06 : x
  2. Step 2: Convert to fraction form
    81,188.72/112,038.49 = 45,382.06/x
  3. Step 3: Cross multiply
    81,188.72x = 112,038.49 × 45,382.06
  4. Step 4: Simplify right side
    81,188.72x = 5,084,537,672.27
  5. Step 5: Solve for x
    x = 5,084,537,672.27/81,188.72
  6. Step 6: Final answer
    x = 62,626.16

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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.