Home / 51,288.62-70,700.76-39,938.10

Finding the Fourth Proportional to 51,288.62, 70,700.76 and 39,938.10

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Solution

The fourth proportional to 51,288.62, 70,700.76 and 39,938.10 is: 55,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,288.62 : 70,700.76 = 39,938.10 : x
  2. Step 2: Convert to fraction form
    51,288.62/70,700.76 = 39,938.10/x
  3. Step 3: Cross multiply
    51,288.62x = 70,700.76 × 39,938.10
  4. Step 4: Simplify right side
    51,288.62x = 2,823,654,022.96
  5. Step 5: Solve for x
    x = 2,823,654,022.96/51,288.62
  6. Step 6: Final answer
    x = 55,054.20

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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.