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Finding the Fourth Proportional to 86,806.30, 130,221.55 and 26,839.67

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Solution

The fourth proportional to 86,806.30, 130,221.55 and 26,839.67 is: 40,263.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,806.30 : 130,221.55 = 26,839.67 : x
  2. Step 2: Convert to fraction form
    86,806.30/130,221.55 = 26,839.67/x
  3. Step 3: Cross multiply
    86,806.30x = 130,221.55 × 26,839.67
  4. Step 4: Simplify right side
    86,806.30x = 3,495,103,428.89
  5. Step 5: Solve for x
    x = 3,495,103,428.89/86,806.30
  6. Step 6: Final answer
    x = 40,263.25

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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.