Home / 88,728.45-122,500.53-56,481.27

Finding the Fourth Proportional to 88,728.45, 122,500.53 and 56,481.27

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Solution

The fourth proportional to 88,728.45, 122,500.53 and 56,481.27 is: 77,979.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,728.45 : 122,500.53 = 56,481.27 : x
  2. Step 2: Convert to fraction form
    88,728.45/122,500.53 = 56,481.27/x
  3. Step 3: Cross multiply
    88,728.45x = 122,500.53 × 56,481.27
  4. Step 4: Simplify right side
    88,728.45x = 6,918,985,510.07
  5. Step 5: Solve for x
    x = 6,918,985,510.07/88,728.45
  6. Step 6: Final answer
    x = 77,979.33

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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.