Home / 83,923.40-125,886.78-31,322.40

Finding the Fourth Proportional to 83,923.40, 125,886.78 and 31,322.40

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Solution

The fourth proportional to 83,923.40, 125,886.78 and 31,322.40 is: 46,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,923.40 : 125,886.78 = 31,322.40 : x
  2. Step 2: Convert to fraction form
    83,923.40/125,886.78 = 31,322.40/x
  3. Step 3: Cross multiply
    83,923.40x = 125,886.78 × 31,322.40
  4. Step 4: Simplify right side
    83,923.40x = 3,943,076,077.87
  5. Step 5: Solve for x
    x = 3,943,076,077.87/83,923.40
  6. Step 6: Final answer
    x = 46,984.23

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1.5x scale

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.