Home / 72,248.13-99,722.48-42,039.31

Finding the Fourth Proportional to 72,248.13, 99,722.48 and 42,039.31

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Solution

The fourth proportional to 72,248.13, 99,722.48 and 42,039.31 is: 58,025.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,248.13 : 99,722.48 = 42,039.31 : x
  2. Step 2: Convert to fraction form
    72,248.13/99,722.48 = 42,039.31/x
  3. Step 3: Cross multiply
    72,248.13x = 99,722.48 × 42,039.31
  4. Step 4: Simplify right side
    72,248.13x = 4,192,263,791.19
  5. Step 5: Solve for x
    x = 4,192,263,791.19/72,248.13
  6. Step 6: Final answer
    x = 58,025.91

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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.