Home / 72,630.46-99,998.31-61,977.34

Finding the Fourth Proportional to 72,630.46, 99,998.31 and 61,977.34

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Solution

The fourth proportional to 72,630.46, 99,998.31 and 61,977.34 is: 85,330.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,630.46 : 99,998.31 = 61,977.34 : x
  2. Step 2: Convert to fraction form
    72,630.46/99,998.31 = 61,977.34/x
  3. Step 3: Cross multiply
    72,630.46x = 99,998.31 × 61,977.34
  4. Step 4: Simplify right side
    72,630.46x = 6,197,629,258.30
  5. Step 5: Solve for x
    x = 6,197,629,258.30/72,630.46
  6. Step 6: Final answer
    x = 85,330.99

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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.