Home / 91,869.78-126,787.65-51,586.22

Finding the Fourth Proportional to 91,869.78, 126,787.65 and 51,586.22

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Solution

The fourth proportional to 91,869.78, 126,787.65 and 51,586.22 is: 71,193.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,869.78 : 126,787.65 = 51,586.22 : x
  2. Step 2: Convert to fraction form
    91,869.78/126,787.65 = 51,586.22/x
  3. Step 3: Cross multiply
    91,869.78x = 126,787.65 × 51,586.22
  4. Step 4: Simplify right side
    91,869.78x = 6,540,495,606.18
  5. Step 5: Solve for x
    x = 6,540,495,606.18/91,869.78
  6. Step 6: Final answer
    x = 71,193.11

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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.