Home / 81,743.96-122,549.80-25,555.16

Finding the Fourth Proportional to 81,743.96, 122,549.80 and 25,555.16

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Solution

The fourth proportional to 81,743.96, 122,549.80 and 25,555.16 is: 38,312.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,743.96 : 122,549.80 = 25,555.16 : x
  2. Step 2: Convert to fraction form
    81,743.96/122,549.80 = 25,555.16/x
  3. Step 3: Cross multiply
    81,743.96x = 122,549.80 × 25,555.16
  4. Step 4: Simplify right side
    81,743.96x = 3,131,779,746.97
  5. Step 5: Solve for x
    x = 3,131,779,746.97/81,743.96
  6. Step 6: Final answer
    x = 38,312.06

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1.5x scale

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.