Home / 72,256.25-99,713.63-40,432.64

Finding the Fourth Proportional to 72,256.25, 99,713.63 and 40,432.64

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Solution

The fourth proportional to 72,256.25, 99,713.63 and 40,432.64 is: 55,797.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,256.25 : 99,713.63 = 40,432.64 : x
  2. Step 2: Convert to fraction form
    72,256.25/99,713.63 = 40,432.64/x
  3. Step 3: Cross multiply
    72,256.25x = 99,713.63 × 40,432.64
  4. Step 4: Simplify right side
    72,256.25x = 4,031,684,907.40
  5. Step 5: Solve for x
    x = 4,031,684,907.40/72,256.25
  6. Step 6: Final answer
    x = 55,797.04

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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.