Home / 76,242.87-105,219.21-42,255.07

Finding the Fourth Proportional to 76,242.87, 105,219.21 and 42,255.07

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Solution

The fourth proportional to 76,242.87, 105,219.21 and 42,255.07 is: 58,314.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,242.87 : 105,219.21 = 42,255.07 : x
  2. Step 2: Convert to fraction form
    76,242.87/105,219.21 = 42,255.07/x
  3. Step 3: Cross multiply
    76,242.87x = 105,219.21 × 42,255.07
  4. Step 4: Simplify right side
    76,242.87x = 4,446,045,083.89
  5. Step 5: Solve for x
    x = 4,446,045,083.89/76,242.87
  6. Step 6: Final answer
    x = 58,314.24

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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.