Home / 86,002.35-128,953.04-26,012.77

Finding the Fourth Proportional to 86,002.35, 128,953.04 and 26,012.77

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Solution

The fourth proportional to 86,002.35, 128,953.04 and 26,012.77 is: 39,003.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,002.35 : 128,953.04 = 26,012.77 : x
  2. Step 2: Convert to fraction form
    86,002.35/128,953.04 = 26,012.77/x
  3. Step 3: Cross multiply
    86,002.35x = 128,953.04 × 26,012.77
  4. Step 4: Simplify right side
    86,002.35x = 3,354,425,753.72
  5. Step 5: Solve for x
    x = 3,354,425,753.72/86,002.35
  6. Step 6: Final answer
    x = 39,003.88

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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.