Home / 90,829.92-125,274.28-59,009.07

Finding the Fourth Proportional to 90,829.92, 125,274.28 and 59,009.07

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Solution

The fourth proportional to 90,829.92, 125,274.28 and 59,009.07 is: 81,386.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,829.92 : 125,274.28 = 59,009.07 : x
  2. Step 2: Convert to fraction form
    90,829.92/125,274.28 = 59,009.07/x
  3. Step 3: Cross multiply
    90,829.92x = 125,274.28 × 59,009.07
  4. Step 4: Simplify right side
    90,829.92x = 7,392,318,757.72
  5. Step 5: Solve for x
    x = 7,392,318,757.72/90,829.92
  6. Step 6: Final answer
    x = 81,386.38

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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.