Home / 72,207.84-99,646.08-40,375.92

Finding the Fourth Proportional to 72,207.84, 99,646.08 and 40,375.92

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Solution

The fourth proportional to 72,207.84, 99,646.08 and 40,375.92 is: 55,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,207.84 : 99,646.08 = 40,375.92 : x
  2. Step 2: Convert to fraction form
    72,207.84/99,646.08 = 40,375.92/x
  3. Step 3: Cross multiply
    72,207.84x = 99,646.08 × 40,375.92
  4. Step 4: Simplify right side
    72,207.84x = 4,023,302,154.39
  5. Step 5: Solve for x
    x = 4,023,302,154.39/72,207.84
  6. Step 6: Final answer
    x = 55,718.36

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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.