Home / 51,345.17-70,853.78-28,679.64

Finding the Fourth Proportional to 51,345.17, 70,853.78 and 28,679.64

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Solution

The fourth proportional to 51,345.17, 70,853.78 and 28,679.64 is: 39,576.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,345.17 : 70,853.78 = 28,679.64 : x
  2. Step 2: Convert to fraction form
    51,345.17/70,853.78 = 28,679.64/x
  3. Step 3: Cross multiply
    51,345.17x = 70,853.78 × 28,679.64
  4. Step 4: Simplify right side
    51,345.17x = 2,032,060,903.04
  5. Step 5: Solve for x
    x = 2,032,060,903.04/51,345.17
  6. Step 6: Final answer
    x = 39,576.48

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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.