Home / 78,358.15-108,133.12-44,365.75

Finding the Fourth Proportional to 78,358.15, 108,133.12 and 44,365.75

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Solution

The fourth proportional to 78,358.15, 108,133.12 and 44,365.75 is: 61,224.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,358.15 : 108,133.12 = 44,365.75 : x
  2. Step 2: Convert to fraction form
    78,358.15/108,133.12 = 44,365.75/x
  3. Step 3: Cross multiply
    78,358.15x = 108,133.12 × 44,365.75
  4. Step 4: Simplify right side
    78,358.15x = 4,797,406,587.39
  5. Step 5: Solve for x
    x = 4,797,406,587.39/78,358.15
  6. Step 6: Final answer
    x = 61,224.09

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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.