Home / 51,070.35-70,471.71-28,405.65

Finding the Fourth Proportional to 51,070.35, 70,471.71 and 28,405.65

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Solution

The fourth proportional to 51,070.35, 70,471.71 and 28,405.65 is: 39,196.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,070.35 : 70,471.71 = 28,405.65 : x
  2. Step 2: Convert to fraction form
    51,070.35/70,471.71 = 28,405.65/x
  3. Step 3: Cross multiply
    51,070.35x = 70,471.71 × 28,405.65
  4. Step 4: Simplify right side
    51,070.35x = 2,001,794,729.16
  5. Step 5: Solve for x
    x = 2,001,794,729.16/51,070.35
  6. Step 6: Final answer
    x = 39,196.81

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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.