Home / 76,212.41-105,224.45-47,575.67

Finding the Fourth Proportional to 76,212.41, 105,224.45 and 47,575.67

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Solution

The fourth proportional to 76,212.41, 105,224.45 and 47,575.67 is: 65,686.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,212.41 : 105,224.45 = 47,575.67 : x
  2. Step 2: Convert to fraction form
    76,212.41/105,224.45 = 47,575.67/x
  3. Step 3: Cross multiply
    76,212.41x = 105,224.45 × 47,575.67
  4. Step 4: Simplify right side
    76,212.41x = 5,006,122,945.13
  5. Step 5: Solve for x
    x = 5,006,122,945.13/76,212.41
  6. Step 6: Final answer
    x = 65,686.46

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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.