Home / 90,717.84-125,176.86-50,431.92

Finding the Fourth Proportional to 90,717.84, 125,176.86 and 50,431.92

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Solution

The fourth proportional to 90,717.84, 125,176.86 and 50,431.92 is: 69,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,717.84 : 125,176.86 = 50,431.92 : x
  2. Step 2: Convert to fraction form
    90,717.84/125,176.86 = 50,431.92/x
  3. Step 3: Cross multiply
    90,717.84x = 125,176.86 × 50,431.92
  4. Step 4: Simplify right side
    90,717.84x = 6,312,909,389.37
  5. Step 5: Solve for x
    x = 6,312,909,389.37/90,717.84
  6. Step 6: Final answer
    x = 69,588.40

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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.