Home / 86,577.75-129,818.01-30,402.23

Finding the Fourth Proportional to 86,577.75, 129,818.01 and 30,402.23

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Solution

The fourth proportional to 86,577.75, 129,818.01 and 30,402.23 is: 45,586.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,577.75 : 129,818.01 = 30,402.23 : x
  2. Step 2: Convert to fraction form
    86,577.75/129,818.01 = 30,402.23/x
  3. Step 3: Cross multiply
    86,577.75x = 129,818.01 × 30,402.23
  4. Step 4: Simplify right side
    86,577.75x = 3,946,756,349.07
  5. Step 5: Solve for x
    x = 3,946,756,349.07/86,577.75
  6. Step 6: Final answer
    x = 45,586.27

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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.