Home / 76,241.55-105,220.67-42,257.40

Finding the Fourth Proportional to 76,241.55, 105,220.67 and 42,257.40

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Solution

The fourth proportional to 76,241.55, 105,220.67 and 42,257.40 is: 58,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,241.55 : 105,220.67 = 42,257.40 : x
  2. Step 2: Convert to fraction form
    76,241.55/105,220.67 = 42,257.40/x
  3. Step 3: Cross multiply
    76,241.55x = 105,220.67 × 42,257.40
  4. Step 4: Simplify right side
    76,241.55x = 4,446,351,572.29
  5. Step 5: Solve for x
    x = 4,446,351,572.29/76,241.55
  6. Step 6: Final answer
    x = 58,319.27

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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.