Home / 72,774.72-100,455.66-45,934.83

Finding the Fourth Proportional to 72,774.72, 100,455.66 and 45,934.83

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Solution

The fourth proportional to 72,774.72, 100,455.66 and 45,934.83 is: 63,406.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,774.72 : 100,455.66 = 45,934.83 : x
  2. Step 2: Convert to fraction form
    72,774.72/100,455.66 = 45,934.83/x
  3. Step 3: Cross multiply
    72,774.72x = 100,455.66 × 45,934.83
  4. Step 4: Simplify right side
    72,774.72x = 4,614,413,664.64
  5. Step 5: Solve for x
    x = 4,614,413,664.64/72,774.72
  6. Step 6: Final answer
    x = 63,406.82

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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.