Home / 83,883.87-125,786.93-31,279.23

Finding the Fourth Proportional to 83,883.87, 125,786.93 and 31,279.23

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Solution

The fourth proportional to 83,883.87, 125,786.93 and 31,279.23 is: 46,904.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,883.87 : 125,786.93 = 31,279.23 : x
  2. Step 2: Convert to fraction form
    83,883.87/125,786.93 = 31,279.23/x
  3. Step 3: Cross multiply
    83,883.87x = 125,786.93 × 31,279.23
  4. Step 4: Simplify right side
    83,883.87x = 3,934,518,158.07
  5. Step 5: Solve for x
    x = 3,934,518,158.07/83,883.87
  6. Step 6: Final answer
    x = 46,904.35

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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.