Home / 51,020.14-70,407.48-28,358.78

Finding the Fourth Proportional to 51,020.14, 70,407.48 and 28,358.78

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Solution

The fourth proportional to 51,020.14, 70,407.48 and 28,358.78 is: 39,134.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,020.14 : 70,407.48 = 28,358.78 : x
  2. Step 2: Convert to fraction form
    51,020.14/70,407.48 = 28,358.78/x
  3. Step 3: Cross multiply
    51,020.14x = 70,407.48 × 28,358.78
  4. Step 4: Simplify right side
    51,020.14x = 1,996,670,235.67
  5. Step 5: Solve for x
    x = 1,996,670,235.67/51,020.14
  6. Step 6: Final answer
    x = 39,134.94

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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.