Home / 88,708.78-122,338.20-56,871.46

Finding the Fourth Proportional to 88,708.78, 122,338.20 and 56,871.46

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Solution

The fourth proportional to 88,708.78, 122,338.20 and 56,871.46 is: 78,431.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,708.78 : 122,338.20 = 56,871.46 : x
  2. Step 2: Convert to fraction form
    88,708.78/122,338.20 = 56,871.46/x
  3. Step 3: Cross multiply
    88,708.78x = 122,338.20 × 56,871.46
  4. Step 4: Simplify right side
    88,708.78x = 6,957,552,047.77
  5. Step 5: Solve for x
    x = 6,957,552,047.77/88,708.78
  6. Step 6: Final answer
    x = 78,431.38

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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.