Home / 72,099.36-99,490.68-40,267.44

Finding the Fourth Proportional to 72,099.36, 99,490.68 and 40,267.44

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Solution

The fourth proportional to 72,099.36, 99,490.68 and 40,267.44 is: 55,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,099.36 : 99,490.68 = 40,267.44 : x
  2. Step 2: Convert to fraction form
    72,099.36/99,490.68 = 40,267.44/x
  3. Step 3: Cross multiply
    72,099.36x = 99,490.68 × 40,267.44
  4. Step 4: Simplify right side
    72,099.36x = 4,006,234,987.46
  5. Step 5: Solve for x
    x = 4,006,234,987.46/72,099.36
  6. Step 6: Final answer
    x = 55,565.47

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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.