Home / 56,977.20-78,612.53-32,776.90

Finding the Fourth Proportional to 56,977.20, 78,612.53 and 32,776.90

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Solution

The fourth proportional to 56,977.20, 78,612.53 and 32,776.90 is: 45,222.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,977.20 : 78,612.53 = 32,776.90 : x
  2. Step 2: Convert to fraction form
    56,977.20/78,612.53 = 32,776.90/x
  3. Step 3: Cross multiply
    56,977.20x = 78,612.53 × 32,776.90
  4. Step 4: Simplify right side
    56,977.20x = 2,576,674,674.14
  5. Step 5: Solve for x
    x = 2,576,674,674.14/56,977.20
  6. Step 6: Final answer
    x = 45,222.91

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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.