Home / 56,648.24-78,171.36-31,497.20

Finding the Fourth Proportional to 56,648.24, 78,171.36 and 31,497.20

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Solution

The fourth proportional to 56,648.24, 78,171.36 and 31,497.20 is: 43,464.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,648.24 : 78,171.36 = 31,497.20 : x
  2. Step 2: Convert to fraction form
    56,648.24/78,171.36 = 31,497.20/x
  3. Step 3: Cross multiply
    56,648.24x = 78,171.36 × 31,497.20
  4. Step 4: Simplify right side
    56,648.24x = 2,462,178,960.19
  5. Step 5: Solve for x
    x = 2,462,178,960.19/56,648.24
  6. Step 6: Final answer
    x = 43,464.35

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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.