Home / 56,974.17-78,639.67-32,777.90

Finding the Fourth Proportional to 56,974.17, 78,639.67 and 32,777.90

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Solution

The fourth proportional to 56,974.17, 78,639.67 and 32,777.90 is: 45,242.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,974.17 : 78,639.67 = 32,777.90 : x
  2. Step 2: Convert to fraction form
    56,974.17/78,639.67 = 32,777.90/x
  3. Step 3: Cross multiply
    56,974.17x = 78,639.67 × 32,777.90
  4. Step 4: Simplify right side
    56,974.17x = 2,577,643,239.29
  5. Step 5: Solve for x
    x = 2,577,643,239.29/56,974.17
  6. Step 6: Final answer
    x = 45,242.31

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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.