Home / 56,821.52-85,271.16-29,138.96

Finding the Fourth Proportional to 56,821.52, 85,271.16 and 29,138.96

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Solution

The fourth proportional to 56,821.52, 85,271.16 and 29,138.96 is: 43,728.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,821.52 : 85,271.16 = 29,138.96 : x
  2. Step 2: Convert to fraction form
    56,821.52/85,271.16 = 29,138.96/x
  3. Step 3: Cross multiply
    56,821.52x = 85,271.16 × 29,138.96
  4. Step 4: Simplify right side
    56,821.52x = 2,484,712,920.39
  5. Step 5: Solve for x
    x = 2,484,712,920.39/56,821.52
  6. Step 6: Final answer
    x = 43,728.38

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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.