Home / 57,120.76-85,681.41-17,678.08

Finding the Fourth Proportional to 57,120.76, 85,681.41 and 17,678.08

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Solution

The fourth proportional to 57,120.76, 85,681.41 and 17,678.08 is: 26,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120.76 : 85,681.41 = 17,678.08 : x
  2. Step 2: Convert to fraction form
    57,120.76/85,681.41 = 17,678.08/x
  3. Step 3: Cross multiply
    57,120.76x = 85,681.41 × 17,678.08
  4. Step 4: Simplify right side
    57,120.76x = 1,514,682,820.49
  5. Step 5: Solve for x
    x = 1,514,682,820.49/57,120.76
  6. Step 6: Final answer
    x = 26,517.20

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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.