Home / 85,514.43-128,271.65-32,214.51

Finding the Fourth Proportional to 85,514.43, 128,271.65 and 32,214.51

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Solution

The fourth proportional to 85,514.43, 128,271.65 and 32,214.51 is: 48,321.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,514.43 : 128,271.65 = 32,214.51 : x
  2. Step 2: Convert to fraction form
    85,514.43/128,271.65 = 32,214.51/x
  3. Step 3: Cross multiply
    85,514.43x = 128,271.65 × 32,214.51
  4. Step 4: Simplify right side
    85,514.43x = 4,132,208,371.78
  5. Step 5: Solve for x
    x = 4,132,208,371.78/85,514.43
  6. Step 6: Final answer
    x = 48,321.77

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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.