Home / 76,446.45-105,475.37-42,911.73

Finding the Fourth Proportional to 76,446.45, 105,475.37 and 42,911.73

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Solution

The fourth proportional to 76,446.45, 105,475.37 and 42,911.73 is: 59,206.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,446.45 : 105,475.37 = 42,911.73 : x
  2. Step 2: Convert to fraction form
    76,446.45/105,475.37 = 42,911.73/x
  3. Step 3: Cross multiply
    76,446.45x = 105,475.37 × 42,911.73
  4. Step 4: Simplify right side
    76,446.45x = 4,526,130,384.53
  5. Step 5: Solve for x
    x = 4,526,130,384.53/76,446.45
  6. Step 6: Final answer
    x = 59,206.55

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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.