Home / 72,360.45-99,862.72-43,687.17

Finding the Fourth Proportional to 72,360.45, 99,862.72 and 43,687.17

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Solution

The fourth proportional to 72,360.45, 99,862.72 and 43,687.17 is: 60,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,360.45 : 99,862.72 = 43,687.17 : x
  2. Step 2: Convert to fraction form
    72,360.45/99,862.72 = 43,687.17/x
  3. Step 3: Cross multiply
    72,360.45x = 99,862.72 × 43,687.17
  4. Step 4: Simplify right side
    72,360.45x = 4,362,719,516.08
  5. Step 5: Solve for x
    x = 4,362,719,516.08/72,360.45
  6. Step 6: Final answer
    x = 60,291.49

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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.