Home / 56,457.74-77,912.75-30,962.49

Finding the Fourth Proportional to 56,457.74, 77,912.75 and 30,962.49

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Solution

The fourth proportional to 56,457.74, 77,912.75 and 30,962.49 is: 42,728.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,457.74 : 77,912.75 = 30,962.49 : x
  2. Step 2: Convert to fraction form
    56,457.74/77,912.75 = 30,962.49/x
  3. Step 3: Cross multiply
    56,457.74x = 77,912.75 × 30,962.49
  4. Step 4: Simplify right side
    56,457.74x = 2,412,372,742.75
  5. Step 5: Solve for x
    x = 2,412,372,742.75/56,457.74
  6. Step 6: Final answer
    x = 42,728.82

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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.