Home / 86,021.16-129,031.73-26,861.89

Finding the Fourth Proportional to 86,021.16, 129,031.73 and 26,861.89

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Solution

The fourth proportional to 86,021.16, 129,031.73 and 26,861.89 is: 40,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,021.16 : 129,031.73 = 26,861.89 : x
  2. Step 2: Convert to fraction form
    86,021.16/129,031.73 = 26,861.89/x
  3. Step 3: Cross multiply
    86,021.16x = 129,031.73 × 26,861.89
  4. Step 4: Simplify right side
    86,021.16x = 3,466,036,137.77
  5. Step 5: Solve for x
    x = 3,466,036,137.77/86,021.16
  6. Step 6: Final answer
    x = 40,292.83

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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.