Home / 72,454.05-99,981.09-40,616.91

Finding the Fourth Proportional to 72,454.05, 99,981.09 and 40,616.91

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Solution

The fourth proportional to 72,454.05, 99,981.09 and 40,616.91 is: 56,048.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,454.05 : 99,981.09 = 40,616.91 : x
  2. Step 2: Convert to fraction form
    72,454.05/99,981.09 = 40,616.91/x
  3. Step 3: Cross multiply
    72,454.05x = 99,981.09 × 40,616.91
  4. Step 4: Simplify right side
    72,454.05x = 4,060,922,934.23
  5. Step 5: Solve for x
    x = 4,060,922,934.23/72,454.05
  6. Step 6: Final answer
    x = 56,048.25

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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.