Home / 90,011.51-124,215.50-49,725.28

Finding the Fourth Proportional to 90,011.51, 124,215.50 and 49,725.28

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Solution

The fourth proportional to 90,011.51, 124,215.50 and 49,725.28 is: 68,620.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,011.51 : 124,215.50 = 49,725.28 : x
  2. Step 2: Convert to fraction form
    90,011.51/124,215.50 = 49,725.28/x
  3. Step 3: Cross multiply
    90,011.51x = 124,215.50 × 49,725.28
  4. Step 4: Simplify right side
    90,011.51x = 6,176,649,958.86
  5. Step 5: Solve for x
    x = 6,176,649,958.86/90,011.51
  6. Step 6: Final answer
    x = 68,620.67

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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.