Home / 83,701.64-115,465.41-53,455.16

Finding the Fourth Proportional to 83,701.64, 115,465.41 and 53,455.16

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Solution

The fourth proportional to 83,701.64, 115,465.41 and 53,455.16 is: 73,740.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,701.64 : 115,465.41 = 53,455.16 : x
  2. Step 2: Convert to fraction form
    83,701.64/115,465.41 = 53,455.16/x
  3. Step 3: Cross multiply
    83,701.64x = 115,465.41 × 53,455.16
  4. Step 4: Simplify right side
    83,701.64x = 6,172,221,388.69
  5. Step 5: Solve for x
    x = 6,172,221,388.69/83,701.64
  6. Step 6: Final answer
    x = 73,740.75

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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.