Home / 77,103.90-115,655.85-59,586.30

Finding the Fourth Proportional to 77,103.90, 115,655.85 and 59,586.30

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Solution

The fourth proportional to 77,103.90, 115,655.85 and 59,586.30 is: 89,379.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,103.90 : 115,655.85 = 59,586.30 : x
  2. Step 2: Convert to fraction form
    77,103.90/115,655.85 = 59,586.30/x
  3. Step 3: Cross multiply
    77,103.90x = 115,655.85 × 59,586.30
  4. Step 4: Simplify right side
    77,103.90x = 6,891,504,174.86
  5. Step 5: Solve for x
    x = 6,891,504,174.86/77,103.90
  6. Step 6: Final answer
    x = 89,379.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.