Home / 76,200.75-105,157.24-42,666.75

Finding the Fourth Proportional to 76,200.75, 105,157.24 and 42,666.75

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Solution

The fourth proportional to 76,200.75, 105,157.24 and 42,666.75 is: 58,880.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,200.75 : 105,157.24 = 42,666.75 : x
  2. Step 2: Convert to fraction form
    76,200.75/105,157.24 = 42,666.75/x
  3. Step 3: Cross multiply
    76,200.75x = 105,157.24 × 42,666.75
  4. Step 4: Simplify right side
    76,200.75x = 4,486,717,563.10
  5. Step 5: Solve for x
    x = 4,486,717,563.10/76,200.75
  6. Step 6: Final answer
    x = 58,880.23

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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.