Home / 72,470.63-99,975.42-51,261.59

Finding the Fourth Proportional to 72,470.63, 99,975.42 and 51,261.59

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Solution

The fourth proportional to 72,470.63, 99,975.42 and 51,261.59 is: 70,716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,470.63 : 99,975.42 = 51,261.59 : x
  2. Step 2: Convert to fraction form
    72,470.63/99,975.42 = 51,261.59/x
  3. Step 3: Cross multiply
    72,470.63x = 99,975.42 × 51,261.59
  4. Step 4: Simplify right side
    72,470.63x = 5,124,898,490.24
  5. Step 5: Solve for x
    x = 5,124,898,490.24/72,470.63
  6. Step 6: Final answer
    x = 70,716.91

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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.