Home / 72,470.13-99,974.73-51,261.09

Finding the Fourth Proportional to 72,470.13, 99,974.73 and 51,261.09

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Solution

The fourth proportional to 72,470.13, 99,974.73 and 51,261.09 is: 70,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,470.13 : 99,974.73 = 51,261.09 : x
  2. Step 2: Convert to fraction form
    72,470.13/99,974.73 = 51,261.09/x
  3. Step 3: Cross multiply
    72,470.13x = 99,974.73 × 51,261.09
  4. Step 4: Simplify right side
    72,470.13x = 5,124,813,632.26
  5. Step 5: Solve for x
    x = 5,124,813,632.26/72,470.13
  6. Step 6: Final answer
    x = 70,716.22

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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.