Home / 85,938.14-128,822.43-36,032.42

Finding the Fourth Proportional to 85,938.14, 128,822.43 and 36,032.42

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Solution

The fourth proportional to 85,938.14, 128,822.43 and 36,032.42 is: 54,013.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,938.14 : 128,822.43 = 36,032.42 : x
  2. Step 2: Convert to fraction form
    85,938.14/128,822.43 = 36,032.42/x
  3. Step 3: Cross multiply
    85,938.14x = 128,822.43 × 36,032.42
  4. Step 4: Simplify right side
    85,938.14x = 4,641,783,903.18
  5. Step 5: Solve for x
    x = 4,641,783,903.18/85,938.14
  6. Step 6: Final answer
    x = 54,013.08

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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.