Home / 51,555.81-71,152.92-28,900.92

Finding the Fourth Proportional to 51,555.81, 71,152.92 and 28,900.92

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Solution

The fourth proportional to 51,555.81, 71,152.92 and 28,900.92 is: 39,886.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,555.81 : 71,152.92 = 28,900.92 : x
  2. Step 2: Convert to fraction form
    51,555.81/71,152.92 = 28,900.92/x
  3. Step 3: Cross multiply
    51,555.81x = 71,152.92 × 28,900.92
  4. Step 4: Simplify right side
    51,555.81x = 2,056,384,848.69
  5. Step 5: Solve for x
    x = 2,056,384,848.69/51,555.81
  6. Step 6: Final answer
    x = 39,886.58

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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.