Home / 56,423.81-77,864.87-31,273.31

Finding the Fourth Proportional to 56,423.81, 77,864.87 and 31,273.31

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Solution

The fourth proportional to 56,423.81, 77,864.87 and 31,273.31 is: 43,157.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,423.81 : 77,864.87 = 31,273.31 : x
  2. Step 2: Convert to fraction form
    56,423.81/77,864.87 = 31,273.31/x
  3. Step 3: Cross multiply
    56,423.81x = 77,864.87 × 31,273.31
  4. Step 4: Simplify right side
    56,423.81x = 2,435,092,490.47
  5. Step 5: Solve for x
    x = 2,435,092,490.47/56,423.81
  6. Step 6: Final answer
    x = 43,157.18

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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.