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Finding the Fourth Proportional to 58,314.40, 87,449.64 and 18,860.92

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Solution

The fourth proportional to 58,314.40, 87,449.64 and 18,860.92 is: 28,284.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,314.40 : 87,449.64 = 18,860.92 : x
  2. Step 2: Convert to fraction form
    58,314.40/87,449.64 = 18,860.92/x
  3. Step 3: Cross multiply
    58,314.40x = 87,449.64 × 18,860.92
  4. Step 4: Simplify right side
    58,314.40x = 1,649,380,664.07
  5. Step 5: Solve for x
    x = 1,649,380,664.07/58,314.40
  6. Step 6: Final answer
    x = 28,284.28

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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.