Home / 86,638.01-129,951.54-36,686.93

Finding the Fourth Proportional to 86,638.01, 129,951.54 and 36,686.93

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Solution

The fourth proportional to 86,638.01, 129,951.54 and 36,686.93 is: 55,028.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,638.01 : 129,951.54 = 36,686.93 : x
  2. Step 2: Convert to fraction form
    86,638.01/129,951.54 = 36,686.93/x
  3. Step 3: Cross multiply
    86,638.01x = 129,951.54 × 36,686.93
  4. Step 4: Simplify right side
    86,638.01x = 4,767,522,401.61
  5. Step 5: Solve for x
    x = 4,767,522,401.61/86,638.01
  6. Step 6: Final answer
    x = 55,028.07

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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.