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Finding the Fourth Proportional to 86,602.62, 129,907.62 and 27,436.98

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Solution

The fourth proportional to 86,602.62, 129,907.62 and 27,436.98 is: 41,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,602.62 : 129,907.62 = 27,436.98 : x
  2. Step 2: Convert to fraction form
    86,602.62/129,907.62 = 27,436.98/x
  3. Step 3: Cross multiply
    86,602.62x = 129,907.62 × 27,436.98
  4. Step 4: Simplify right side
    86,602.62x = 3,564,272,771.79
  5. Step 5: Solve for x
    x = 3,564,272,771.79/86,602.62
  6. Step 6: Final answer
    x = 41,156.64

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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.