Home / 56,997.18-78,655.68-31,505.22

Finding the Fourth Proportional to 56,997.18, 78,655.68 and 31,505.22

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Solution

The fourth proportional to 56,997.18, 78,655.68 and 31,505.22 is: 43,476.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,997.18 : 78,655.68 = 31,505.22 : x
  2. Step 2: Convert to fraction form
    56,997.18/78,655.68 = 31,505.22/x
  3. Step 3: Cross multiply
    56,997.18x = 78,655.68 × 31,505.22
  4. Step 4: Simplify right side
    56,997.18x = 2,478,064,502.65
  5. Step 5: Solve for x
    x = 2,478,064,502.65/56,997.18
  6. Step 6: Final answer
    x = 43,476.97

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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.