Home / 53,543.13-80,315.25-21,945.07

Finding the Fourth Proportional to 53,543.13, 80,315.25 and 21,945.07

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Solution

The fourth proportional to 53,543.13, 80,315.25 and 21,945.07 is: 32,917.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,543.13 : 80,315.25 = 21,945.07 : x
  2. Step 2: Convert to fraction form
    53,543.13/80,315.25 = 21,945.07/x
  3. Step 3: Cross multiply
    53,543.13x = 80,315.25 × 21,945.07
  4. Step 4: Simplify right side
    53,543.13x = 1,762,523,783.32
  5. Step 5: Solve for x
    x = 1,762,523,783.32/53,543.13
  6. Step 6: Final answer
    x = 32,917.83

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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.