Home / 72,416.11-99,940.13-40,153.93

Finding the Fourth Proportional to 72,416.11, 99,940.13 and 40,153.93

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Solution

The fourth proportional to 72,416.11, 99,940.13 and 40,153.93 is: 55,415.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,416.11 : 99,940.13 = 40,153.93 : x
  2. Step 2: Convert to fraction form
    72,416.11/99,940.13 = 40,153.93/x
  3. Step 3: Cross multiply
    72,416.11x = 99,940.13 × 40,153.93
  4. Step 4: Simplify right side
    72,416.11x = 4,012,988,984.21
  5. Step 5: Solve for x
    x = 4,012,988,984.21/72,416.11
  6. Step 6: Final answer
    x = 55,415.69

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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.