Home / 56,690.34-85,032.66-21,148.86

Finding the Fourth Proportional to 56,690.34, 85,032.66 and 21,148.86

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Solution

The fourth proportional to 56,690.34, 85,032.66 and 21,148.86 is: 31,722.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,690.34 : 85,032.66 = 21,148.86 : x
  2. Step 2: Convert to fraction form
    56,690.34/85,032.66 = 21,148.86/x
  3. Step 3: Cross multiply
    56,690.34x = 85,032.66 × 21,148.86
  4. Step 4: Simplify right side
    56,690.34x = 1,798,343,821.77
  5. Step 5: Solve for x
    x = 1,798,343,821.77/56,690.34
  6. Step 6: Final answer
    x = 31,722.23

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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.