Home / 83,509.32-115,264.98-51,660.12

Finding the Fourth Proportional to 83,509.32, 115,264.98 and 51,660.12

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Solution

The fourth proportional to 83,509.32, 115,264.98 and 51,660.12 is: 71,304.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,509.32 : 115,264.98 = 51,660.12 : x
  2. Step 2: Convert to fraction form
    83,509.32/115,264.98 = 51,660.12/x
  3. Step 3: Cross multiply
    83,509.32x = 115,264.98 × 51,660.12
  4. Step 4: Simplify right side
    83,509.32x = 5,954,602,698.60
  5. Step 5: Solve for x
    x = 5,954,602,698.60/83,509.32
  6. Step 6: Final answer
    x = 71,304.65

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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.