Home / 56,175.42-84,271.77-21,117.54

Finding the Fourth Proportional to 56,175.42, 84,271.77 and 21,117.54

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Solution

The fourth proportional to 56,175.42, 84,271.77 and 21,117.54 is: 31,679.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,175.42 : 84,271.77 = 21,117.54 : x
  2. Step 2: Convert to fraction form
    56,175.42/84,271.77 = 21,117.54/x
  3. Step 3: Cross multiply
    56,175.42x = 84,271.77 × 21,117.54
  4. Step 4: Simplify right side
    56,175.42x = 1,779,612,473.85
  5. Step 5: Solve for x
    x = 1,779,612,473.85/56,175.42
  6. Step 6: Final answer
    x = 31,679.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.