Home / 57,220.48-78,962.07-31,727.89

Finding the Fourth Proportional to 57,220.48, 78,962.07 and 31,727.89

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Solution

The fourth proportional to 57,220.48, 78,962.07 and 31,727.89 is: 43,783.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,220.48 : 78,962.07 = 31,727.89 : x
  2. Step 2: Convert to fraction form
    57,220.48/78,962.07 = 31,727.89/x
  3. Step 3: Cross multiply
    57,220.48x = 78,962.07 × 31,727.89
  4. Step 4: Simplify right side
    57,220.48x = 2,505,299,871.13
  5. Step 5: Solve for x
    x = 2,505,299,871.13/57,220.48
  6. Step 6: Final answer
    x = 43,783.27

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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.