Home / 72,006.94-99,369.93-40,177.63

Finding the Fourth Proportional to 72,006.94, 99,369.93 and 40,177.63

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Solution

The fourth proportional to 72,006.94, 99,369.93 and 40,177.63 is: 55,445.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006.94 : 99,369.93 = 40,177.63 : x
  2. Step 2: Convert to fraction form
    72,006.94/99,369.93 = 40,177.63/x
  3. Step 3: Cross multiply
    72,006.94x = 99,369.93 × 40,177.63
  4. Step 4: Simplify right side
    72,006.94x = 3,992,448,280.67
  5. Step 5: Solve for x
    x = 3,992,448,280.67/72,006.94
  6. Step 6: Final answer
    x = 55,445.33

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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.