Home / 72,906.08-99,954.21-71,577.47

Finding the Fourth Proportional to 72,906.08, 99,954.21 and 71,577.47

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Solution

The fourth proportional to 72,906.08, 99,954.21 and 71,577.47 is: 98,132.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,906.08 : 99,954.21 = 71,577.47 : x
  2. Step 2: Convert to fraction form
    72,906.08/99,954.21 = 71,577.47/x
  3. Step 3: Cross multiply
    72,906.08x = 99,954.21 × 71,577.47
  4. Step 4: Simplify right side
    72,906.08x = 7,154,468,967.88
  5. Step 5: Solve for x
    x = 7,154,468,967.88/72,906.08
  6. Step 6: Final answer
    x = 98,132.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.