Home / 71,835.52-99,130.80-40,003.76

Finding the Fourth Proportional to 71,835.52, 99,130.80 and 40,003.76

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Solution

The fourth proportional to 71,835.52, 99,130.80 and 40,003.76 is: 55,203.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,835.52 : 99,130.80 = 40,003.76 : x
  2. Step 2: Convert to fraction form
    71,835.52/99,130.80 = 40,003.76/x
  3. Step 3: Cross multiply
    71,835.52x = 99,130.80 × 40,003.76
  4. Step 4: Simplify right side
    71,835.52x = 3,965,604,731.81
  5. Step 5: Solve for x
    x = 3,965,604,731.81/71,835.52
  6. Step 6: Final answer
    x = 55,203.95

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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.