Home / 76,455.09-105,504.42-42,465.77

Finding the Fourth Proportional to 76,455.09, 105,504.42 and 42,465.77

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Solution

The fourth proportional to 76,455.09, 105,504.42 and 42,465.77 is: 58,600.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,455.09 : 105,504.42 = 42,465.77 : x
  2. Step 2: Convert to fraction form
    76,455.09/105,504.42 = 42,465.77/x
  3. Step 3: Cross multiply
    76,455.09x = 105,504.42 × 42,465.77
  4. Step 4: Simplify right side
    76,455.09x = 4,480,325,906.18
  5. Step 5: Solve for x
    x = 4,480,325,906.18/76,455.09
  6. Step 6: Final answer
    x = 58,600.75

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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.