Home / 72,044.72-99,418.44-40,212.92

Finding the Fourth Proportional to 72,044.72, 99,418.44 and 40,212.92

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Solution

The fourth proportional to 72,044.72, 99,418.44 and 40,212.92 is: 55,492.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,044.72 : 99,418.44 = 40,212.92 : x
  2. Step 2: Convert to fraction form
    72,044.72/99,418.44 = 40,212.92/x
  3. Step 3: Cross multiply
    72,044.72x = 99,418.44 × 40,212.92
  4. Step 4: Simplify right side
    72,044.72x = 3,997,905,774.24
  5. Step 5: Solve for x
    x = 3,997,905,774.24/72,044.72
  6. Step 6: Final answer
    x = 55,492.00

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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.