Home / 76,502.22-105,543.54-56,406.84

Finding the Fourth Proportional to 76,502.22, 105,543.54 and 56,406.84

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Solution

The fourth proportional to 76,502.22, 105,543.54 and 56,406.84 is: 77,819.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,502.22 : 105,543.54 = 56,406.84 : x
  2. Step 2: Convert to fraction form
    76,502.22/105,543.54 = 56,406.84/x
  3. Step 3: Cross multiply
    76,502.22x = 105,543.54 × 56,406.84
  4. Step 4: Simplify right side
    76,502.22x = 5,953,377,573.81
  5. Step 5: Solve for x
    x = 5,953,377,573.81/76,502.22
  6. Step 6: Final answer
    x = 77,819.67

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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.