Home / 52,061.23-78,091.14-12,618.68

Finding the Fourth Proportional to 52,061.23, 78,091.14 and 12,618.68

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Solution

The fourth proportional to 52,061.23, 78,091.14 and 12,618.68 is: 18,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,061.23 : 78,091.14 = 12,618.68 : x
  2. Step 2: Convert to fraction form
    52,061.23/78,091.14 = 12,618.68/x
  3. Step 3: Cross multiply
    52,061.23x = 78,091.14 × 12,618.68
  4. Step 4: Simplify right side
    52,061.23x = 985,407,106.50
  5. Step 5: Solve for x
    x = 985,407,106.50/52,061.23
  6. Step 6: Final answer
    x = 18,927.85

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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.