Home / 93,009.18-128,124.82-67,440.40

Finding the Fourth Proportional to 93,009.18, 128,124.82 and 67,440.40

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Solution

The fourth proportional to 93,009.18, 128,124.82 and 67,440.40 is: 92,902.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,009.18 : 128,124.82 = 67,440.40 : x
  2. Step 2: Convert to fraction form
    93,009.18/128,124.82 = 67,440.40/x
  3. Step 3: Cross multiply
    93,009.18x = 128,124.82 × 67,440.40
  4. Step 4: Simplify right side
    93,009.18x = 8,640,789,110.73
  5. Step 5: Solve for x
    x = 8,640,789,110.73/93,009.18
  6. Step 6: Final answer
    x = 92,902.54

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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.