Home / 76,401.90-105,433.65-42,410.32

Finding the Fourth Proportional to 76,401.90, 105,433.65 and 42,410.32

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Solution

The fourth proportional to 76,401.90, 105,433.65 and 42,410.32 is: 58,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,401.90 : 105,433.65 = 42,410.32 : x
  2. Step 2: Convert to fraction form
    76,401.90/105,433.65 = 42,410.32/x
  3. Step 3: Cross multiply
    76,401.90x = 105,433.65 × 42,410.32
  4. Step 4: Simplify right side
    76,401.90x = 4,471,474,571.68
  5. Step 5: Solve for x
    x = 4,471,474,571.68/76,401.90
  6. Step 6: Final answer
    x = 58,525.70

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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.