Home / 76,414.46-105,446.66-42,420.26

Finding the Fourth Proportional to 76,414.46, 105,446.66 and 42,420.26

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Solution

The fourth proportional to 76,414.46, 105,446.66 and 42,420.26 is: 58,537.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,414.46 : 105,446.66 = 42,420.26 : x
  2. Step 2: Convert to fraction form
    76,414.46/105,446.66 = 42,420.26/x
  3. Step 3: Cross multiply
    76,414.46x = 105,446.66 × 42,420.26
  4. Step 4: Simplify right side
    76,414.46x = 4,473,073,994.00
  5. Step 5: Solve for x
    x = 4,473,073,994.00/76,414.46
  6. Step 6: Final answer
    x = 58,537.01

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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.