Home / 54,688.10-82,064.55-39,859.70

Finding the Fourth Proportional to 54,688.10, 82,064.55 and 39,859.70

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Solution

The fourth proportional to 54,688.10, 82,064.55 and 39,859.70 is: 59,813.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,688.10 : 82,064.55 = 39,859.70 : x
  2. Step 2: Convert to fraction form
    54,688.10/82,064.55 = 39,859.70/x
  3. Step 3: Cross multiply
    54,688.10x = 82,064.55 × 39,859.70
  4. Step 4: Simplify right side
    54,688.10x = 3,271,068,343.64
  5. Step 5: Solve for x
    x = 3,271,068,343.64/54,688.10
  6. Step 6: Final answer
    x = 59,813.16

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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.