Home / 56,520.57-77,982.40-36,389.11

Finding the Fourth Proportional to 56,520.57, 77,982.40 and 36,389.11

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Solution

The fourth proportional to 56,520.57, 77,982.40 and 36,389.11 is: 50,206.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,520.57 : 77,982.40 = 36,389.11 : x
  2. Step 2: Convert to fraction form
    56,520.57/77,982.40 = 36,389.11/x
  3. Step 3: Cross multiply
    56,520.57x = 77,982.40 × 36,389.11
  4. Step 4: Simplify right side
    56,520.57x = 2,837,710,011.43
  5. Step 5: Solve for x
    x = 2,837,710,011.43/56,520.57
  6. Step 6: Final answer
    x = 50,206.68

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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.