Home / 72,416.76-99,936.36-40,583.76

Finding the Fourth Proportional to 72,416.76, 99,936.36 and 40,583.76

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Solution

The fourth proportional to 72,416.76, 99,936.36 and 40,583.76 is: 56,006.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,416.76 : 99,936.36 = 40,583.76 : x
  2. Step 2: Convert to fraction form
    72,416.76/99,936.36 = 40,583.76/x
  3. Step 3: Cross multiply
    72,416.76x = 99,936.36 × 40,583.76
  4. Step 4: Simplify right side
    72,416.76x = 4,055,793,249.51
  5. Step 5: Solve for x
    x = 4,055,793,249.51/72,416.76
  6. Step 6: Final answer
    x = 56,006.28

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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.