Home / 56,271.18-84,381.93-20,732.70

Finding the Fourth Proportional to 56,271.18, 84,381.93 and 20,732.70

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Solution

The fourth proportional to 56,271.18, 84,381.93 and 20,732.70 is: 31,089.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,271.18 : 84,381.93 = 20,732.70 : x
  2. Step 2: Convert to fraction form
    56,271.18/84,381.93 = 20,732.70/x
  3. Step 3: Cross multiply
    56,271.18x = 84,381.93 × 20,732.70
  4. Step 4: Simplify right side
    56,271.18x = 1,749,465,240.11
  5. Step 5: Solve for x
    x = 1,749,465,240.11/56,271.18
  6. Step 6: Final answer
    x = 31,089.90

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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.