Home / 61,814.72-85,316.42-40,331.10

Finding the Fourth Proportional to 61,814.72, 85,316.42 and 40,331.10

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Solution

The fourth proportional to 61,814.72, 85,316.42 and 40,331.10 is: 55,664.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,814.72 : 85,316.42 = 40,331.10 : x
  2. Step 2: Convert to fraction form
    61,814.72/85,316.42 = 40,331.10/x
  3. Step 3: Cross multiply
    61,814.72x = 85,316.42 × 40,331.10
  4. Step 4: Simplify right side
    61,814.72x = 3,440,905,066.66
  5. Step 5: Solve for x
    x = 3,440,905,066.66/61,814.72
  6. Step 6: Final answer
    x = 55,664.82

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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.