Home / 56,814.07-78,406.10-31,663.75

Finding the Fourth Proportional to 56,814.07, 78,406.10 and 31,663.75

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Solution

The fourth proportional to 56,814.07, 78,406.10 and 31,663.75 is: 43,697.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,814.07 : 78,406.10 = 31,663.75 : x
  2. Step 2: Convert to fraction form
    56,814.07/78,406.10 = 31,663.75/x
  3. Step 3: Cross multiply
    56,814.07x = 78,406.10 × 31,663.75
  4. Step 4: Simplify right side
    56,814.07x = 2,482,631,148.88
  5. Step 5: Solve for x
    x = 2,482,631,148.88/56,814.07
  6. Step 6: Final answer
    x = 43,697.47

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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.