Home / 83,639.84-115,384.48-53,410.04

Finding the Fourth Proportional to 83,639.84, 115,384.48 and 53,410.04

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Solution

The fourth proportional to 83,639.84, 115,384.48 and 53,410.04 is: 73,681.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,639.84 : 115,384.48 = 53,410.04 : x
  2. Step 2: Convert to fraction form
    83,639.84/115,384.48 = 53,410.04/x
  3. Step 3: Cross multiply
    83,639.84x = 115,384.48 × 53,410.04
  4. Step 4: Simplify right side
    83,639.84x = 6,162,689,115.26
  5. Step 5: Solve for x
    x = 6,162,689,115.26/83,639.84
  6. Step 6: Final answer
    x = 73,681.26

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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.