Home / 72,457.11-99,970.36-46,964.54

Finding the Fourth Proportional to 72,457.11, 99,970.36 and 46,964.54

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Solution

The fourth proportional to 72,457.11, 99,970.36 and 46,964.54 is: 64,797.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,457.11 : 99,970.36 = 46,964.54 : x
  2. Step 2: Convert to fraction form
    72,457.11/99,970.36 = 46,964.54/x
  3. Step 3: Cross multiply
    72,457.11x = 99,970.36 × 46,964.54
  4. Step 4: Simplify right side
    72,457.11x = 4,695,062,103.55
  5. Step 5: Solve for x
    x = 4,695,062,103.55/72,457.11
  6. Step 6: Final answer
    x = 64,797.81

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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.