Home / 51,434.81-70,986.60-28,775.06

Finding the Fourth Proportional to 51,434.81, 70,986.60 and 28,775.06

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Solution

The fourth proportional to 51,434.81, 70,986.60 and 28,775.06 is: 39,713.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,434.81 : 70,986.60 = 28,775.06 : x
  2. Step 2: Convert to fraction form
    51,434.81/70,986.60 = 28,775.06/x
  3. Step 3: Cross multiply
    51,434.81x = 70,986.60 × 28,775.06
  4. Step 4: Simplify right side
    51,434.81x = 2,042,643,674.20
  5. Step 5: Solve for x
    x = 2,042,643,674.20/51,434.81
  6. Step 6: Final answer
    x = 39,713.25

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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.