Home / 90,979.07-125,552.36-52,741.40

Finding the Fourth Proportional to 90,979.07, 125,552.36 and 52,741.40

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Solution

The fourth proportional to 90,979.07, 125,552.36 and 52,741.40 is: 72,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,979.07 : 125,552.36 = 52,741.40 : x
  2. Step 2: Convert to fraction form
    90,979.07/125,552.36 = 52,741.40/x
  3. Step 3: Cross multiply
    90,979.07x = 125,552.36 × 52,741.40
  4. Step 4: Simplify right side
    90,979.07x = 6,621,806,743.80
  5. Step 5: Solve for x
    x = 6,621,806,743.80/90,979.07
  6. Step 6: Final answer
    x = 72,783.85

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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.