Home / 56,490.36-77,954.05-30,996.15

Finding the Fourth Proportional to 56,490.36, 77,954.05 and 30,996.15

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Solution

The fourth proportional to 56,490.36, 77,954.05 and 30,996.15 is: 42,773.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,490.36 : 77,954.05 = 30,996.15 : x
  2. Step 2: Convert to fraction form
    56,490.36/77,954.05 = 30,996.15/x
  3. Step 3: Cross multiply
    56,490.36x = 77,954.05 × 30,996.15
  4. Step 4: Simplify right side
    56,490.36x = 2,416,275,426.91
  5. Step 5: Solve for x
    x = 2,416,275,426.91/56,490.36
  6. Step 6: Final answer
    x = 42,773.23

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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.