Home / 56,882.24-78,499.14-31,390.28

Finding the Fourth Proportional to 56,882.24, 78,499.14 and 31,390.28

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Solution

The fourth proportional to 56,882.24, 78,499.14 and 31,390.28 is: 43,319.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,882.24 : 78,499.14 = 31,390.28 : x
  2. Step 2: Convert to fraction form
    56,882.24/78,499.14 = 31,390.28/x
  3. Step 3: Cross multiply
    56,882.24x = 78,499.14 × 31,390.28
  4. Step 4: Simplify right side
    56,882.24x = 2,464,109,984.36
  5. Step 5: Solve for x
    x = 2,464,109,984.36/56,882.24
  6. Step 6: Final answer
    x = 43,319.50

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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.