Home / 71,520.07-107,314.95-29,412.80

Finding the Fourth Proportional to 71,520.07, 107,314.95 and 29,412.80

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Solution

The fourth proportional to 71,520.07, 107,314.95 and 29,412.80 is: 44,133.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,520.07 : 107,314.95 = 29,412.80 : x
  2. Step 2: Convert to fraction form
    71,520.07/107,314.95 = 29,412.80/x
  3. Step 3: Cross multiply
    71,520.07x = 107,314.95 × 29,412.80
  4. Step 4: Simplify right side
    71,520.07x = 3,156,433,161.36
  5. Step 5: Solve for x
    x = 3,156,433,161.36/71,520.07
  6. Step 6: Final answer
    x = 44,133.53

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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.