Home / 82,071.12-113,182.92-53,792.40

Finding the Fourth Proportional to 82,071.12, 113,182.92 and 53,792.40

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Solution

The fourth proportional to 82,071.12, 113,182.92 and 53,792.40 is: 74,184.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,071.12 : 113,182.92 = 53,792.40 : x
  2. Step 2: Convert to fraction form
    82,071.12/113,182.92 = 53,792.40/x
  3. Step 3: Cross multiply
    82,071.12x = 113,182.92 × 53,792.40
  4. Step 4: Simplify right side
    82,071.12x = 6,088,380,905.81
  5. Step 5: Solve for x
    x = 6,088,380,905.81/82,071.12
  6. Step 6: Final answer
    x = 74,184.21

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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.