Home / 72,334.89-99,830.70-40,497.66

Finding the Fourth Proportional to 72,334.89, 99,830.70 and 40,497.66

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Solution

The fourth proportional to 72,334.89, 99,830.70 and 40,497.66 is: 55,891.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,334.89 : 99,830.70 = 40,497.66 : x
  2. Step 2: Convert to fraction form
    72,334.89/99,830.70 = 40,497.66/x
  3. Step 3: Cross multiply
    72,334.89x = 99,830.70 × 40,497.66
  4. Step 4: Simplify right side
    72,334.89x = 4,042,909,746.16
  5. Step 5: Solve for x
    x = 4,042,909,746.16/72,334.89
  6. Step 6: Final answer
    x = 55,891.56

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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.