Home / 51,050.43-70,439.50-30,909.17

Finding the Fourth Proportional to 51,050.43, 70,439.50 and 30,909.17

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Solution

The fourth proportional to 51,050.43, 70,439.50 and 30,909.17 is: 42,648.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,050.43 : 70,439.50 = 30,909.17 : x
  2. Step 2: Convert to fraction form
    51,050.43/70,439.50 = 30,909.17/x
  3. Step 3: Cross multiply
    51,050.43x = 70,439.50 × 30,909.17
  4. Step 4: Simplify right side
    51,050.43x = 2,177,226,409.91
  5. Step 5: Solve for x
    x = 2,177,226,409.91/51,050.43
  6. Step 6: Final answer
    x = 42,648.54

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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.