Home / 85,966.48-118,639.11-49,669.48

Finding the Fourth Proportional to 85,966.48, 118,639.11 and 49,669.48

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Solution

The fourth proportional to 85,966.48, 118,639.11 and 49,669.48 is: 68,546.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,966.48 : 118,639.11 = 49,669.48 : x
  2. Step 2: Convert to fraction form
    85,966.48/118,639.11 = 49,669.48/x
  3. Step 3: Cross multiply
    85,966.48x = 118,639.11 × 49,669.48
  4. Step 4: Simplify right side
    85,966.48x = 5,892,742,901.36
  5. Step 5: Solve for x
    x = 5,892,742,901.36/85,966.48
  6. Step 6: Final answer
    x = 68,546.98

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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.