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Finding the Fourth Proportional to 86,574.80, 129,874.35 and 27,404.30

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Solution

The fourth proportional to 86,574.80, 129,874.35 and 27,404.30 is: 41,110.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,574.80 : 129,874.35 = 27,404.30 : x
  2. Step 2: Convert to fraction form
    86,574.80/129,874.35 = 27,404.30/x
  3. Step 3: Cross multiply
    86,574.80x = 129,874.35 × 27,404.30
  4. Step 4: Simplify right side
    86,574.80x = 3,559,115,649.71
  5. Step 5: Solve for x
    x = 3,559,115,649.71/86,574.80
  6. Step 6: Final answer
    x = 41,110.30

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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.