Home / 56,669.90-78,206.16-31,174.96

Finding the Fourth Proportional to 56,669.90, 78,206.16 and 31,174.96

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Solution

The fourth proportional to 56,669.90, 78,206.16 and 31,174.96 is: 43,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,669.90 : 78,206.16 = 31,174.96 : x
  2. Step 2: Convert to fraction form
    56,669.90/78,206.16 = 31,174.96/x
  3. Step 3: Cross multiply
    56,669.90x = 78,206.16 × 31,174.96
  4. Step 4: Simplify right side
    56,669.90x = 2,438,073,909.75
  5. Step 5: Solve for x
    x = 2,438,073,909.75/56,669.90
  6. Step 6: Final answer
    x = 43,022.38

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1.5x scale

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.