Home / 72,828.16-100,499.04-40,996

Finding the Fourth Proportional to 72,828.16, 100,499.04 and 40,996

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Solution

The fourth proportional to 72,828.16, 100,499.04 and 40,996 is: 56,572.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,828.16 : 100,499.04 = 40,996 : x
  2. Step 2: Convert to fraction form
    72,828.16/100,499.04 = 40,996/x
  3. Step 3: Cross multiply
    72,828.16x = 100,499.04 × 40,996
  4. Step 4: Simplify right side
    72,828.16x = 4,120,058,643.84
  5. Step 5: Solve for x
    x = 4,120,058,643.84/72,828.16
  6. Step 6: Final answer
    x = 56,572.33

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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.