Home / 72,669.96-100,243.59-45,766.26

Finding the Fourth Proportional to 72,669.96, 100,243.59 and 45,766.26

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Solution

The fourth proportional to 72,669.96, 100,243.59 and 45,766.26 is: 63,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,669.96 : 100,243.59 = 45,766.26 : x
  2. Step 2: Convert to fraction form
    72,669.96/100,243.59 = 45,766.26/x
  3. Step 3: Cross multiply
    72,669.96x = 100,243.59 × 45,766.26
  4. Step 4: Simplify right side
    72,669.96x = 4,587,774,203.27
  5. Step 5: Solve for x
    x = 4,587,774,203.27/72,669.96
  6. Step 6: Final answer
    x = 63,131.65

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1.5x scale

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.