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Finding the Fourth Proportional to 72,356.21, 99,852.04 and 40,525.11

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Solution

The fourth proportional to 72,356.21, 99,852.04 and 40,525.11 is: 55,924.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,356.21 : 99,852.04 = 40,525.11 : x
  2. Step 2: Convert to fraction form
    72,356.21/99,852.04 = 40,525.11/x
  3. Step 3: Cross multiply
    72,356.21x = 99,852.04 × 40,525.11
  4. Step 4: Simplify right side
    72,356.21x = 4,046,514,955.38
  5. Step 5: Solve for x
    x = 4,046,514,955.38/72,356.21
  6. Step 6: Final answer
    x = 55,924.91

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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.