Home / 72,335.76-99,825.12-40,511.16

Finding the Fourth Proportional to 72,335.76, 99,825.12 and 40,511.16

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Solution

The fourth proportional to 72,335.76, 99,825.12 and 40,511.16 is: 55,906.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,335.76 : 99,825.12 = 40,511.16 : x
  2. Step 2: Convert to fraction form
    72,335.76/99,825.12 = 40,511.16/x
  3. Step 3: Cross multiply
    72,335.76x = 99,825.12 × 40,511.16
  4. Step 4: Simplify right side
    72,335.76x = 4,044,031,408.34
  5. Step 5: Solve for x
    x = 4,044,031,408.34/72,335.76
  6. Step 6: Final answer
    x = 55,906.39

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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.