Home / 56,619.08-78,135.54-31,468.04

Finding the Fourth Proportional to 56,619.08, 78,135.54 and 31,468.04

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Solution

The fourth proportional to 56,619.08, 78,135.54 and 31,468.04 is: 43,426.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,619.08 : 78,135.54 = 31,468.04 : x
  2. Step 2: Convert to fraction form
    56,619.08/78,135.54 = 31,468.04/x
  3. Step 3: Cross multiply
    56,619.08x = 78,135.54 × 31,468.04
  4. Step 4: Simplify right side
    56,619.08x = 2,458,772,298.14
  5. Step 5: Solve for x
    x = 2,458,772,298.14/56,619.08
  6. Step 6: Final answer
    x = 43,426.57

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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.