Home / 72,124.66-99,519.87-40,293.82

Finding the Fourth Proportional to 72,124.66, 99,519.87 and 40,293.82

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Solution

The fourth proportional to 72,124.66, 99,519.87 and 40,293.82 is: 55,598.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,124.66 : 99,519.87 = 40,293.82 : x
  2. Step 2: Convert to fraction form
    72,124.66/99,519.87 = 40,293.82/x
  3. Step 3: Cross multiply
    72,124.66x = 99,519.87 × 40,293.82
  4. Step 4: Simplify right side
    72,124.66x = 4,010,035,728.20
  5. Step 5: Solve for x
    x = 4,010,035,728.20/72,124.66
  6. Step 6: Final answer
    x = 55,598.68

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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.