Home / 54,128.16-80,988.08-31,953.60

Finding the Fourth Proportional to 54,128.16, 80,988.08 and 31,953.60

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Solution

The fourth proportional to 54,128.16, 80,988.08 and 31,953.60 is: 47,809.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128.16 : 80,988.08 = 31,953.60 : x
  2. Step 2: Convert to fraction form
    54,128.16/80,988.08 = 31,953.60/x
  3. Step 3: Cross multiply
    54,128.16x = 80,988.08 × 31,953.60
  4. Step 4: Simplify right side
    54,128.16x = 2,587,860,713.09
  5. Step 5: Solve for x
    x = 2,587,860,713.09/54,128.16
  6. Step 6: Final answer
    x = 47,809.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.