Home / 72,436.32-99,962-40,605.24

Finding the Fourth Proportional to 72,436.32, 99,962 and 40,605.24

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Solution

The fourth proportional to 72,436.32, 99,962 and 40,605.24 is: 56,035.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,436.32 : 99,962 = 40,605.24 : x
  2. Step 2: Convert to fraction form
    72,436.32/99,962 = 40,605.24/x
  3. Step 3: Cross multiply
    72,436.32x = 99,962 × 40,605.24
  4. Step 4: Simplify right side
    72,436.32x = 4,058,981,000.88
  5. Step 5: Solve for x
    x = 4,058,981,000.88/72,436.32
  6. Step 6: Final answer
    x = 56,035.16

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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.