Home / 72,377.62-99,857.18-43,686.38

Finding the Fourth Proportional to 72,377.62, 99,857.18 and 43,686.38

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Solution

The fourth proportional to 72,377.62, 99,857.18 and 43,686.38 is: 60,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,377.62 : 99,857.18 = 43,686.38 : x
  2. Step 2: Convert to fraction form
    72,377.62/99,857.18 = 43,686.38/x
  3. Step 3: Cross multiply
    72,377.62x = 99,857.18 × 43,686.38
  4. Step 4: Simplify right side
    72,377.62x = 4,362,398,211.92
  5. Step 5: Solve for x
    x = 4,362,398,211.92/72,377.62
  6. Step 6: Final answer
    x = 60,272.75

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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.