Home / 72,435.75-99,939.33-45,605.04

Finding the Fourth Proportional to 72,435.75, 99,939.33 and 45,605.04

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Solution

The fourth proportional to 72,435.75, 99,939.33 and 45,605.04 is: 62,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,435.75 : 99,939.33 = 45,605.04 : x
  2. Step 2: Convert to fraction form
    72,435.75/99,939.33 = 45,605.04/x
  3. Step 3: Cross multiply
    72,435.75x = 99,939.33 × 45,605.04
  4. Step 4: Simplify right side
    72,435.75x = 4,557,737,142.22
  5. Step 5: Solve for x
    x = 4,557,737,142.22/72,435.75
  6. Step 6: Final answer
    x = 62,921.10

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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.