Home / 72,154.15-99,508.26-45,299.16

Finding the Fourth Proportional to 72,154.15, 99,508.26 and 45,299.16

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Solution

The fourth proportional to 72,154.15, 99,508.26 and 45,299.16 is: 62,472.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,154.15 : 99,508.26 = 45,299.16 : x
  2. Step 2: Convert to fraction form
    72,154.15/99,508.26 = 45,299.16/x
  3. Step 3: Cross multiply
    72,154.15x = 99,508.26 × 45,299.16
  4. Step 4: Simplify right side
    72,154.15x = 4,507,640,093.52
  5. Step 5: Solve for x
    x = 4,507,640,093.52/72,154.15
  6. Step 6: Final answer
    x = 62,472.36

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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.