Home / 51,439.58-70,988.64-30,218.66

Finding the Fourth Proportional to 51,439.58, 70,988.64 and 30,218.66

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Solution

The fourth proportional to 51,439.58, 70,988.64 and 30,218.66 is: 41,702.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,439.58 : 70,988.64 = 30,218.66 : x
  2. Step 2: Convert to fraction form
    51,439.58/70,988.64 = 30,218.66/x
  3. Step 3: Cross multiply
    51,439.58x = 70,988.64 × 30,218.66
  4. Step 4: Simplify right side
    51,439.58x = 2,145,181,576.02
  5. Step 5: Solve for x
    x = 2,145,181,576.02/51,439.58
  6. Step 6: Final answer
    x = 41,702.94

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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.