Home / 51,047.47-70,439.38-28,380.77

Finding the Fourth Proportional to 51,047.47, 70,439.38 and 28,380.77

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Solution

The fourth proportional to 51,047.47, 70,439.38 and 28,380.77 is: 39,162.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,047.47 : 70,439.38 = 28,380.77 : x
  2. Step 2: Convert to fraction form
    51,047.47/70,439.38 = 28,380.77/x
  3. Step 3: Cross multiply
    51,047.47x = 70,439.38 × 28,380.77
  4. Step 4: Simplify right side
    51,047.47x = 1,999,123,842.72
  5. Step 5: Solve for x
    x = 1,999,123,842.72/51,047.47
  6. Step 6: Final answer
    x = 39,162.06

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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.