Home / 63,639.97-88,013.45-55,668.35

Finding the Fourth Proportional to 63,639.97, 88,013.45 and 55,668.35

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Solution

The fourth proportional to 63,639.97, 88,013.45 and 55,668.35 is: 76,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,639.97 : 88,013.45 = 55,668.35 : x
  2. Step 2: Convert to fraction form
    63,639.97/88,013.45 = 55,668.35/x
  3. Step 3: Cross multiply
    63,639.97x = 88,013.45 × 55,668.35
  4. Step 4: Simplify right side
    63,639.97x = 4,899,563,539.31
  5. Step 5: Solve for x
    x = 4,899,563,539.31/63,639.97
  6. Step 6: Final answer
    x = 76,988.78

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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.