Home / 52,110.80-78,166.36-12,667.76

Finding the Fourth Proportional to 52,110.80, 78,166.36 and 12,667.76

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Solution

The fourth proportional to 52,110.80, 78,166.36 and 12,667.76 is: 19,001.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,110.80 : 78,166.36 = 12,667.76 : x
  2. Step 2: Convert to fraction form
    52,110.80/78,166.36 = 12,667.76/x
  3. Step 3: Cross multiply
    52,110.80x = 78,166.36 × 12,667.76
  4. Step 4: Simplify right side
    52,110.80x = 990,192,688.55
  5. Step 5: Solve for x
    x = 990,192,688.55/52,110.80
  6. Step 6: Final answer
    x = 19,001.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.