Home / 56,653.24-78,178.26-31,502.20

Finding the Fourth Proportional to 56,653.24, 78,178.26 and 31,502.20

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Solution

The fourth proportional to 56,653.24, 78,178.26 and 31,502.20 is: 43,471.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,653.24 : 78,178.26 = 31,502.20 : x
  2. Step 2: Convert to fraction form
    56,653.24/78,178.26 = 31,502.20/x
  3. Step 3: Cross multiply
    56,653.24x = 78,178.26 × 31,502.20
  4. Step 4: Simplify right side
    56,653.24x = 2,462,787,182.17
  5. Step 5: Solve for x
    x = 2,462,787,182.17/56,653.24
  6. Step 6: Final answer
    x = 43,471.25

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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.