Home / 72,634.14-100,244.45-40,803.08

Finding the Fourth Proportional to 72,634.14, 100,244.45 and 40,803.08

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Solution

The fourth proportional to 72,634.14, 100,244.45 and 40,803.08 is: 56,313.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,634.14 : 100,244.45 = 40,803.08 : x
  2. Step 2: Convert to fraction form
    72,634.14/100,244.45 = 40,803.08/x
  3. Step 3: Cross multiply
    72,634.14x = 100,244.45 × 40,803.08
  4. Step 4: Simplify right side
    72,634.14x = 4,090,281,913.69
  5. Step 5: Solve for x
    x = 4,090,281,913.69/72,634.14
  6. Step 6: Final answer
    x = 56,313.49

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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.