Home / 57,191.58-78,855.75-49,220.10

Finding the Fourth Proportional to 57,191.58, 78,855.75 and 49,220.10

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Solution

The fourth proportional to 57,191.58, 78,855.75 and 49,220.10 is: 67,864.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,191.58 : 78,855.75 = 49,220.10 : x
  2. Step 2: Convert to fraction form
    57,191.58/78,855.75 = 49,220.10/x
  3. Step 3: Cross multiply
    57,191.58x = 78,855.75 × 49,220.10
  4. Step 4: Simplify right side
    57,191.58x = 3,881,287,900.58
  5. Step 5: Solve for x
    x = 3,881,287,900.58/57,191.58
  6. Step 6: Final answer
    x = 67,864.67

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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.