Home / 83,940.10-125,812.95-33,987.40

Finding the Fourth Proportional to 83,940.10, 125,812.95 and 33,987.40

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Solution

The fourth proportional to 83,940.10, 125,812.95 and 33,987.40 is: 50,941.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,940.10 : 125,812.95 = 33,987.40 : x
  2. Step 2: Convert to fraction form
    83,940.10/125,812.95 = 33,987.40/x
  3. Step 3: Cross multiply
    83,940.10x = 125,812.95 × 33,987.40
  4. Step 4: Simplify right side
    83,940.10x = 4,276,055,056.83
  5. Step 5: Solve for x
    x = 4,276,055,056.83/83,940.10
  6. Step 6: Final answer
    x = 50,941.74

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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.