Home / 87,365.40-131,145.30-47,999.40

Finding the Fourth Proportional to 87,365.40, 131,145.30 and 47,999.40

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Solution

The fourth proportional to 87,365.40, 131,145.30 and 47,999.40 is: 72,052.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,365.40 : 131,145.30 = 47,999.40 : x
  2. Step 2: Convert to fraction form
    87,365.40/131,145.30 = 47,999.40/x
  3. Step 3: Cross multiply
    87,365.40x = 131,145.30 × 47,999.40
  4. Step 4: Simplify right side
    87,365.40x = 6,294,895,712.82
  5. Step 5: Solve for x
    x = 6,294,895,712.82/87,365.40
  6. Step 6: Final answer
    x = 72,052.50

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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.