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Finding the Fourth Proportional to 60,380.64, 90,588.96 and 28,814.40

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Solution

The fourth proportional to 60,380.64, 90,588.96 and 28,814.40 is: 43,230.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,380.64 : 90,588.96 = 28,814.40 : x
  2. Step 2: Convert to fraction form
    60,380.64/90,588.96 = 28,814.40/x
  3. Step 3: Cross multiply
    60,380.64x = 90,588.96 × 28,814.40
  4. Step 4: Simplify right side
    60,380.64x = 2,610,266,529.02
  5. Step 5: Solve for x
    x = 2,610,266,529.02/60,380.64
  6. Step 6: Final answer
    x = 43,230.19

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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.