Home / 72,066.33-99,453.15-45,209.97

Finding the Fourth Proportional to 72,066.33, 99,453.15 and 45,209.97

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Solution

The fourth proportional to 72,066.33, 99,453.15 and 45,209.97 is: 62,390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,066.33 : 99,453.15 = 45,209.97 : x
  2. Step 2: Convert to fraction form
    72,066.33/99,453.15 = 45,209.97/x
  3. Step 3: Cross multiply
    72,066.33x = 99,453.15 × 45,209.97
  4. Step 4: Simplify right side
    72,066.33x = 4,496,273,927.91
  5. Step 5: Solve for x
    x = 4,496,273,927.91/72,066.33
  6. Step 6: Final answer
    x = 62,390.77

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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.