Home / 56,887.04-78,505.80-31,736

Finding the Fourth Proportional to 56,887.04, 78,505.80 and 31,736

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Solution

The fourth proportional to 56,887.04, 78,505.80 and 31,736 is: 43,796.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,887.04 : 78,505.80 = 31,736 : x
  2. Step 2: Convert to fraction form
    56,887.04/78,505.80 = 31,736/x
  3. Step 3: Cross multiply
    56,887.04x = 78,505.80 × 31,736
  4. Step 4: Simplify right side
    56,887.04x = 2,491,460,068.80
  5. Step 5: Solve for x
    x = 2,491,460,068.80/56,887.04
  6. Step 6: Final answer
    x = 43,796.62

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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.