Home / 85,938.96-128,877.54-29,763.94

Finding the Fourth Proportional to 85,938.96, 128,877.54 and 29,763.94

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Solution

The fourth proportional to 85,938.96, 128,877.54 and 29,763.94 is: 44,635.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,938.96 : 128,877.54 = 29,763.94 : x
  2. Step 2: Convert to fraction form
    85,938.96/128,877.54 = 29,763.94/x
  3. Step 3: Cross multiply
    85,938.96x = 128,877.54 × 29,763.94
  4. Step 4: Simplify right side
    85,938.96x = 3,835,903,367.91
  5. Step 5: Solve for x
    x = 3,835,903,367.91/85,938.96
  6. Step 6: Final answer
    x = 44,635.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.