Home / 86,436.76-129,655.16-27,277.04

Finding the Fourth Proportional to 86,436.76, 129,655.16 and 27,277.04

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Solution

The fourth proportional to 86,436.76, 129,655.16 and 27,277.04 is: 40,915.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,436.76 : 129,655.16 = 27,277.04 : x
  2. Step 2: Convert to fraction form
    86,436.76/129,655.16 = 27,277.04/x
  3. Step 3: Cross multiply
    86,436.76x = 129,655.16 × 27,277.04
  4. Step 4: Simplify right side
    86,436.76x = 3,536,608,985.53
  5. Step 5: Solve for x
    x = 3,536,608,985.53/86,436.76
  6. Step 6: Final answer
    x = 40,915.57

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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.