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Finding the Fourth Proportional to 77,325.75, 106,707.74 and 45,496.71

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Solution

The fourth proportional to 77,325.75, 106,707.74 and 45,496.71 is: 62,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,325.75 : 106,707.74 = 45,496.71 : x
  2. Step 2: Convert to fraction form
    77,325.75/106,707.74 = 45,496.71/x
  3. Step 3: Cross multiply
    77,325.75x = 106,707.74 × 45,496.71
  4. Step 4: Simplify right side
    77,325.75x = 4,854,850,874.05
  5. Step 5: Solve for x
    x = 4,854,850,874.05/77,325.75
  6. Step 6: Final answer
    x = 62,784.40

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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.