Home / 56,986.35-78,643.90-34,332.45

Finding the Fourth Proportional to 56,986.35, 78,643.90 and 34,332.45

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Solution

The fourth proportional to 56,986.35, 78,643.90 and 34,332.45 is: 47,380.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,986.35 : 78,643.90 = 34,332.45 : x
  2. Step 2: Convert to fraction form
    56,986.35/78,643.90 = 34,332.45/x
  3. Step 3: Cross multiply
    56,986.35x = 78,643.90 × 34,332.45
  4. Step 4: Simplify right side
    56,986.35x = 2,700,037,764.56
  5. Step 5: Solve for x
    x = 2,700,037,764.56/56,986.35
  6. Step 6: Final answer
    x = 47,380.43

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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.