Home / 85,916.18-118,554.81-47,674.46

Finding the Fourth Proportional to 85,916.18, 118,554.81 and 47,674.46

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Solution

The fourth proportional to 85,916.18, 118,554.81 and 47,674.46 is: 65,785.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,916.18 : 118,554.81 = 47,674.46 : x
  2. Step 2: Convert to fraction form
    85,916.18/118,554.81 = 47,674.46/x
  3. Step 3: Cross multiply
    85,916.18x = 118,554.81 × 47,674.46
  4. Step 4: Simplify right side
    85,916.18x = 5,652,036,664.76
  5. Step 5: Solve for x
    x = 5,652,036,664.76/85,916.18
  6. Step 6: Final answer
    x = 65,785.47

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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.