Home / 76,389.82-105,437.33-52,200.57

Finding the Fourth Proportional to 76,389.82, 105,437.33 and 52,200.57

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Solution

The fourth proportional to 76,389.82, 105,437.33 and 52,200.57 is: 72,050.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,389.82 : 105,437.33 = 52,200.57 : x
  2. Step 2: Convert to fraction form
    76,389.82/105,437.33 = 52,200.57/x
  3. Step 3: Cross multiply
    76,389.82x = 105,437.33 × 52,200.57
  4. Step 4: Simplify right side
    76,389.82x = 5,503,888,725.28
  5. Step 5: Solve for x
    x = 5,503,888,725.28/76,389.82
  6. Step 6: Final answer
    x = 72,050.03

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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.