Home / 76,852.81-106,056.68-42,861.34

Finding the Fourth Proportional to 76,852.81, 106,056.68 and 42,861.34

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Solution

The fourth proportional to 76,852.81, 106,056.68 and 42,861.34 is: 59,148.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,852.81 : 106,056.68 = 42,861.34 : x
  2. Step 2: Convert to fraction form
    76,852.81/106,056.68 = 42,861.34/x
  3. Step 3: Cross multiply
    76,852.81x = 106,056.68 × 42,861.34
  4. Step 4: Simplify right side
    76,852.81x = 4,545,731,420.75
  5. Step 5: Solve for x
    x = 4,545,731,420.75/76,852.81
  6. Step 6: Final answer
    x = 59,148.54

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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.