Home / 56,791.06-78,372.20-31,298.35

Finding the Fourth Proportional to 56,791.06, 78,372.20 and 31,298.35

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Solution

The fourth proportional to 56,791.06, 78,372.20 and 31,298.35 is: 43,192.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,791.06 : 78,372.20 = 31,298.35 : x
  2. Step 2: Convert to fraction form
    56,791.06/78,372.20 = 31,298.35/x
  3. Step 3: Cross multiply
    56,791.06x = 78,372.20 × 31,298.35
  4. Step 4: Simplify right side
    56,791.06x = 2,452,920,154.01
  5. Step 5: Solve for x
    x = 2,452,920,154.01/56,791.06
  6. Step 6: Final answer
    x = 43,192.01

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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.