Home / 72,446.24-99,980.62-40,617.20

Finding the Fourth Proportional to 72,446.24, 99,980.62 and 40,617.20

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Solution

The fourth proportional to 72,446.24, 99,980.62 and 40,617.20 is: 56,054.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,446.24 : 99,980.62 = 40,617.20 : x
  2. Step 2: Convert to fraction form
    72,446.24/99,980.62 = 40,617.20/x
  3. Step 3: Cross multiply
    72,446.24x = 99,980.62 × 40,617.20
  4. Step 4: Simplify right side
    72,446.24x = 4,060,932,838.66
  5. Step 5: Solve for x
    x = 4,060,932,838.66/72,446.24
  6. Step 6: Final answer
    x = 56,054.43

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1.5x scale

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.