Home / 72,073.92-99,461.08-40,243.36

Finding the Fourth Proportional to 72,073.92, 99,461.08 and 40,243.36

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Solution

The fourth proportional to 72,073.92, 99,461.08 and 40,243.36 is: 55,535.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,073.92 : 99,461.08 = 40,243.36 : x
  2. Step 2: Convert to fraction form
    72,073.92/99,461.08 = 40,243.36/x
  3. Step 3: Cross multiply
    72,073.92x = 99,461.08 × 40,243.36
  4. Step 4: Simplify right side
    72,073.92x = 4,002,648,048.43
  5. Step 5: Solve for x
    x = 4,002,648,048.43/72,073.92
  6. Step 6: Final answer
    x = 55,535.32

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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.