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Finding the Fourth Proportional to 75,494.40, 104,188.08 and 45,280.92

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Solution

The fourth proportional to 75,494.40, 104,188.08 and 45,280.92 is: 62,491.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,494.40 : 104,188.08 = 45,280.92 : x
  2. Step 2: Convert to fraction form
    75,494.40/104,188.08 = 45,280.92/x
  3. Step 3: Cross multiply
    75,494.40x = 104,188.08 × 45,280.92
  4. Step 4: Simplify right side
    75,494.40x = 4,717,732,115.43
  5. Step 5: Solve for x
    x = 4,717,732,115.43/75,494.40
  6. Step 6: Final answer
    x = 62,491.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.